Version 0.2.63

Merge pull request #2531 from ranaroussi/hotfix/download-isin
Fix download()+ISIN
2025-06-12 09:41:44 +01:00 · 2025-06-12 09:41:00 +01:00 · 2025-06-12 08:54:57 +01:00 · 2025-06-08 16:08:37 +01:00 · 2025-06-08 16:02:33 +01:00 · 2025-06-08 14:58:43 +01:00
30 changed files with 550 additions and 344 deletions
--- a/.github/workflows/ruff.yml
+++ b/.github/workflows/ruff.yml
@@ -9,7 +9,7 @@ jobs:
  ruff:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v3
-      - uses: chartboost/ruff-action@v1
+      - uses: actions/checkout@v4
+      - uses: astral-sh/ruff-action@v3
        with:
          args: check . --exclude yfinance/pricing_pb2.py
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,22 @@
 Change Log
 ===========

+0.2.63
+------
+Fix download(ISIN)  # 2531
+
+0.2.62
+------
+Fix prices 'period=max' sometimes failing  # 2509
+ISIN cache  #2516
+Proxy:
+- fix false 'proxy deprecated' messages
+- fix ISIN + proxy  #2514
+- replace print_once with warnings  #2523
+Error handling:
+- detect rate-limit during crumb fetch  #2491
+- replace requests.HTTPError with curl_cffi
+
 0.2.61
 ------
 Fix ALL type hints in websocket #2493
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,37 +1,23 @@
 # Contributing

-> [!NOTE]
-> This is a brief guide to contributing to yfinance.
-> For more information See the [Developer Guide](https://ranaroussi.github.io/yfinance/development) for more information.
+yfinance relies on the community to investigate bugs and contribute code.

-## Changes
-
-The list of changes can be found in the [Changelog](https://github.com/ranaroussi/yfinance/blob/main/CHANGELOG.rst)
-
-## Running a branch
-
-```bash
-pip install git+ranaroussi/yfinance.git@dev # dev branch
-```
-
-For more information, see the [Developer Guide](https://ranaroussi.github.io/yfinance/development/running.html).
+This is a quick short guide, full guide at https://ranaroussi.github.io/yfinance/development/index.html

 ## Branches

 YFinance uses a two-layer branch model:

-* **dev**: new features & some bug-fixes merged here, tested together, conflicts fixed, etc.
+* **dev**: new features & most bug-fixes merged here, tested together, conflicts fixed, etc.
 * **main**: stable branch where PIP releases are created.

-> [!NOTE]
-> By default, branches target **main**, but most contributions should target **dev**. 
-> Direct merges to **main** are allowed if:
-> * `yfinance` is massively broken
-> * Part of `yfinance` is broken, and the fix is simple and isolated
-> * Not updating the code (e.g. docs)
+## Running a branch

-> [!NOTE]
-> For more information, see the [Developer Guide](https://ranaroussi.github.io/yfinance/development/branches.html).
+```bash
+pip install git+ranaroussi/yfinance.git@dev  # <- dev branch
+```
+
+https://ranaroussi.github.io/yfinance/development/running.html

 ### I'm a GitHub newbie, how do I contribute code?

@@ -39,39 +25,36 @@ YFinance uses a two-layer branch model:

 2. Implement your change in your fork, ideally in a specific branch

-3. Create a Pull Request, from your fork to this project. If addressing an Issue, link to it
+3. Create a [Pull Request](https://github.com/ranaroussi/yfinance/pulls), from your fork to this project. If addressing an Issue, link to it

-> [!NOTE]
-> See the [Developer Guide](https://ranaroussi.github.io/yfinance/development/contributing.html) for more information.
-
-### [How to download & run a GitHub version of yfinance](#Running-a-branch)
+https://ranaroussi.github.io/yfinance/development/code.html

 ## Documentation website

-The new docs website [ranaroussi.github.io/yfinance/index.html](https://ranaroussi.github.io/yfinance/index.html) is generated automatically from code. 
+The new docs website is generated automatically from code. https://ranaroussi.github.io/yfinance/index.html

-> [!NOTE]
-> See the [Developer Guide](https://ranaroussi.github.io/yfinance/development/documentation.html) for more information
-> Including how to build and run the docs locally.
+Remember to updates docs when you change code, and check docs locally.
+
+https://ranaroussi.github.io/yfinance/development/documentation.html
+
+## Git tricks
+
+Help keep the Git commit history and [network graph](https://github.com/ranaroussi/yfinance/network) compact:
+
+* got a long descriptive commit message? `git commit -m "short sentence summary" -m "full commit message"`
+
+* combine multiple commits into 1 with `git squash`
+
+* `git rebase` is your friend: change base branch, or "merge in" updates
+
+https://ranaroussi.github.io/yfinance/development/code.html#git-stuff

 ## Unit tests

 Tests have been written using the built-in Python module `unittest`. Examples:

-#### Run all tests: `python -m unittest discover -s tests`
+* Run all tests: `python -m unittest discover -s tests`

-> [!NOTE]
->
-> See the [Developer Guide](https://ranaroussi.github.io/yfinance/development/testing.html) for more information.
+https://ranaroussi.github.io/yfinance/development/testing.html

-## Git stuff
-### commits
-
-To keep the Git commit history and [network graph](https://github.com/ranaroussi/yfinance/network) compact please follow these two rules:
-
-* For long commit messages use this: `git commit -m "short sentence summary" -m "full commit message"`
-
-* `squash` tiny/negligible commits back with meaningful commits, or to combine successive related commits
-
-> [!NOTE]
-> See the [Developer Guide](https://ranaroussi.github.io/yfinance/development/contributing.html#GIT-STUFF) for more information.
+> See the [Developer Guide](https://ranaroussi.github.io/yfinance/development/contributing.html#GIT-STUFF) for more information.
--- a/doc/source/development/branches.rst
+++ b/doc/source/development/branches.rst
@@ -1,41 +0,0 @@
-********
-Branches
-********
-
-To support rapid development without breaking stable versions, this project uses a two-layer branch model:
-
-.. image:: assets/branches.png
-   :alt: Branching Model
-
-`Inspiration <https://miro.medium.com/max/700/1*2YagIpX6LuauC3ASpwHekg.png>`_
-
- **dev**: New features and some bug fixes are merged here. This branch allows collective testing, conflict resolution, and further stabilization before merging into the stable branch.
- **main**: Stable branch where PIP releases are created.
-
-By default, branches target **main**, but most contributions should target **dev**. 
-
-**Exceptions**:
-Direct merges to **main** are allowed if:
-
- `yfinance` is massively broken
- Part of `yfinance` is broken, and the fix is simple and isolated
- Not updating the code (e.g. docs)
-
-Rebasing
--------
-
-If asked to move your branch from **main** to **dev**:
-
-1. Ensure all relevant branches are pulled.
-2. Run:
-
-   .. code-block:: bash
-
-      git checkout {branch}
-      git rebase --onto dev main {brach}
-      git push --force-with-lease origin {branch}
-
-Running a branch
----------------
-
-Please see `this page </development/running>`_.
--- a/doc/source/development/code.rst
+++ b/doc/source/development/code.rst
@@ -2,7 +2,30 @@
 Code
 ****

-1. Fork the repository on GitHub. If already forked, remember to `Sync fork`
+To support rapid development without breaking stable versions, this project uses a two-layer branch model:
+
+.. image:: assets/branches.png
+   :alt: Branching Model
+
+`Inspiration <https://miro.medium.com/max/700/1*2YagIpX6LuauC3ASpwHekg.png>`_
+
+- **dev**: New features and some bug fixes are merged here. This branch allows collective testing, conflict resolution, and further stabilization before merging into the stable branch.
+- **main**: Stable branch where PIP releases are created.
+
+By default, branches target **main**, but most contributions should target **dev**. 
+
+**Exceptions**:
+Direct merges to **main** are allowed if:
+
+- `yfinance` is massively broken
+- Part of `yfinance` is broken, and the fix is simple and isolated
+- Not updating the code (e.g. docs)
+
+Creating your branch
+--------------------
+
+1. Fork the repository on GitHub. If already forked, remember to ``Sync fork``
+
 2. Clone your forked repository:

   .. code-block:: bash
@@ -15,39 +38,26 @@ Code

      git checkout {base e.g. dev}
      git pull
-      git checkout -b {branch}
+      git checkout -b {your branch}

-4. Make your changes, commit them, and push your branch to GitHub. To keep the commit history and `network graph <https://github.com/ranaroussi/yfinance/network>`_ compact:
-
-   - for long commit messages use this format. Your long message can be multiple lines (tip: copy-paste):
-
-     .. code-block:: bash
-
-        git commit -m "short sentence summary" -m "full commit message"
-
-   - **git squash** tiny or negligible commits with meaningful ones, or to combine successive related commits. `git squash guide <https://docs.gitlab.com/ee/topics/git/git_rebase.html#interactive-rebase>`_
-
-     .. code-block:: bash
-
-        git rebase -i HEAD~2
-        git push --force-with-lease origin {branch}
-
-5. If your branch is old and missing important updates in base branch, then instead of merging in, do a git rebase. This keeps your branch history clean. E.g.
+4. Make your changes, commit them, and push your branch to GitHub. To keep the commit history and `network graph <https://github.com/ranaroussi/yfinance/network>`_ compact, give your commits a very short summary then description:

   .. code-block:: bash
-     
-      git checkout {base e.g. dev}
-      git pull
-      git checkout {branch}
-      git rebase {base}
-      git push --force-with-lease origin {branch}
+
+      git commit -m "short sentence summary" -m "full commit message"
+      # Long message can be multiple lines (tip: copy-paste)

 6. `Open a pull request on Github <https://github.com/ranaroussi/yfinance/pulls>`_.

-More Git stuff
+Running a branch
+----------------
+
+Please see `this page </development/running>`_.
+
+Git stuff
 ---------

- ``git rebase``. You might be asked to move your branch from ``main`` to ``dev``. Important to update **all** relevant branches.
+- You might be asked to move your branch from ``main`` to ``dev``. This is a ``git rebase``. Remember to update **all** branches involved.

  .. code-block:: bash

@@ -56,9 +66,25 @@ More Git stuff
     git pull
     git checkout dev
     git pull
-     # rebase:
-     git checkout {branch}
+     # rebase from main to dev:
+     git checkout {your branch}
     git pull
-     git rebase --onto dev main {branch}
-     git push --force-with-lease origin {branch}
+     git rebase --onto dev main {your branch}
+     git push --force-with-lease origin {your branch}

+- ``git rebase`` can also be used to update your branch with new commits from base, but without adding a commit to your branch history like git merge does. This keeps history clean and avoids future merge problems.
+
+  .. code-block:: bash
+
+     git checkout {base branch e.g. dev}
+     git pull
+     git checkout {your branch}
+     git rebase {base}
+     git push --force-with-lease origin {your branch}
+
+- ``git squash`` tiny or negligible commits with meaningful ones, or to combine successive related commits. `git squash guide <https://docs.gitlab.com/ee/topics/git/git_rebase.html#interactive-rebase>`_
+
+  .. code-block:: bash
+
+     git rebase -i HEAD~2
+     git push --force-with-lease origin {your branch}
--- a/doc/source/development/index.rst
+++ b/doc/source/development/index.rst
@@ -8,7 +8,6 @@ yfinance relies on the community to investigate bugs and contribute code. Here's
   :maxdepth: 1

   code
+   running
   documentation
-   branches
-   testing
-   running
+   testing
--- a/meta.yaml
+++ b/meta.yaml
@@ -1,5 +1,5 @@
 {% set name = "yfinance" %}
-{% set version = "0.2.61" %}
+{% set version = "0.2.63" %}

 package:
  name: "{{ name|lower }}"
--- a/tests/context.py
+++ b/tests/context.py
@@ -5,8 +5,8 @@ import datetime as _dt
 import sys
 import os
 import yfinance
-from requests_ratelimiter import LimiterSession
-from pyrate_limiter import Duration, RequestRate, Limiter
+# from requests_ratelimiter import LimiterSession
+# from pyrate_limiter import Duration, RequestRate, Limiter

 _parent_dp = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
 _src_dp = _parent_dp
@@ -25,12 +25,15 @@ if os.path.isdir(testing_cache_dirpath):
        import shutil
        shutil.rmtree(testing_cache_dirpath)

-# Setup a session to only rate-limit
-history_rate = RequestRate(1, Duration.SECOND)
-limiter = Limiter(history_rate)
-session_gbl = LimiterSession(limiter=limiter)
+# Since switching to curl_cffi, the requests_ratelimiter|cache won't work.
+session_gbl = None

-# Use this instead if you also want caching:
+# # Setup a session to only rate-limit
+# history_rate = RequestRate(1, Duration.SECOND)
+# limiter = Limiter(history_rate)
+# session_gbl = LimiterSession(limiter=limiter)
+
+# # Use this instead if you also want caching:
 # from requests_cache import CacheMixin, SQLiteCache
 # from requests_ratelimiter import LimiterMixin
 # from requests import Session
--- a/tests/test_ticker.py
+++ b/tests/test_ticker.py
@@ -18,9 +18,9 @@ from yfinance.exceptions import YFPricesMissingError, YFInvalidPeriodError, YFNo


 import unittest
-import requests_cache
+# import requests_cache
 from typing import Union, Any, get_args, _GenericAlias
-from urllib.parse import urlparse, parse_qs, urlencode, urlunparse
+# from urllib.parse import urlparse, parse_qs, urlencode, urlunparse

 ticker_attributes = (
    ("major_holders", pd.DataFrame),
@@ -284,36 +284,37 @@ class TestTickerHistory(unittest.TestCase):
                        else:
                            self.assertIsInstance(data.columns, pd.MultiIndex)

-    def test_no_expensive_calls_introduced(self):
-        """
-        Make sure calling history to get price data has not introduced more calls to yahoo than absolutely necessary.
-        As doing other type of scraping calls than "query2.finance.yahoo.com/v8/finance/chart" to yahoo website
-        will quickly trigger spam-block when doing bulk download of history data.
-        """
-        symbol = "GOOGL"
-        period = "1y"
-        with requests_cache.CachedSession(backend="memory") as session:
-            ticker = yf.Ticker(symbol, session=session)
-            ticker.history(period=period)
-            actual_urls_called = [r.url for r in session.cache.filter()]
+    # Hopefully one day we find an equivalent "requests_cache" that works with "curl_cffi"
+    # def test_no_expensive_calls_introduced(self):
+    #     """
+    #     Make sure calling history to get price data has not introduced more calls to yahoo than absolutely necessary.
+    #     As doing other type of scraping calls than "query2.finance.yahoo.com/v8/finance/chart" to yahoo website
+    #     will quickly trigger spam-block when doing bulk download of history data.
+    #     """
+    #     symbol = "GOOGL"
+    #     period = "1y"
+    #     with requests_cache.CachedSession(backend="memory") as session:
+    #         ticker = yf.Ticker(symbol, session=session)
+    #         ticker.history(period=period)
+    #         actual_urls_called = [r.url for r in session.cache.filter()]

-        # Remove 'crumb' argument
-        for i in range(len(actual_urls_called)):
-            u = actual_urls_called[i]
-            parsed_url = urlparse(u)
-            query_params = parse_qs(parsed_url.query)
-            query_params.pop('crumb', None)
-            query_params.pop('cookie', None)
-            u = urlunparse(parsed_url._replace(query=urlencode(query_params, doseq=True)))
-            actual_urls_called[i] = u
-        actual_urls_called = tuple(actual_urls_called)
+    #     # Remove 'crumb' argument
+    #     for i in range(len(actual_urls_called)):
+    #         u = actual_urls_called[i]
+    #         parsed_url = urlparse(u)
+    #         query_params = parse_qs(parsed_url.query)
+    #         query_params.pop('crumb', None)
+    #         query_params.pop('cookie', None)
+    #         u = urlunparse(parsed_url._replace(query=urlencode(query_params, doseq=True)))
+    #         actual_urls_called[i] = u
+    #     actual_urls_called = tuple(actual_urls_called)

-        expected_urls = [
-            f"https://query2.finance.yahoo.com/v8/finance/chart/{symbol}?interval=1d&range=1d",  # ticker's tz
-            f"https://query2.finance.yahoo.com/v8/finance/chart/{symbol}?events=div%2Csplits%2CcapitalGains&includePrePost=False&interval=1d&range={period}"
-        ]
-        for url in actual_urls_called:
-            self.assertTrue(url in expected_urls, f"Unexpected URL called: {url}")
+    #     expected_urls = [
+    #         f"https://query2.finance.yahoo.com/v8/finance/chart/{symbol}?interval=1d&range=1d",  # ticker's tz
+    #         f"https://query2.finance.yahoo.com/v8/finance/chart/{symbol}?events=div%2Csplits%2CcapitalGains&includePrePost=False&interval=1d&range={period}"
+    #     ]
+    #     for url in actual_urls_called:
+    #         self.assertTrue(url in expected_urls, f"Unexpected URL called: {url}")

    def test_dividends(self):
        data = self.ticker.dividends
@@ -889,8 +890,6 @@ class TestTickerAnalysts(unittest.TestCase):
        data = self.ticker.upgrades_downgrades
        self.assertIsInstance(data, pd.DataFrame, "data has wrong type")
        self.assertFalse(data.empty, "data is empty")
-        self.assertTrue(len(data.columns) == 4, "data has wrong number of columns")
-        self.assertCountEqual(data.columns.values.tolist(), ['Firm', 'ToGrade', 'FromGrade', 'Action'], "data has wrong column names")
        self.assertIsInstance(data.index, pd.DatetimeIndex, "data has wrong index type")

        data_cached = self.ticker.upgrades_downgrades
@@ -1000,7 +999,6 @@ class TestTickerInfo(unittest.TestCase):
        self.assertIsInstance(data, dict, "data has wrong type")
        expected_keys = ['industry', 'currentPrice', 'exchange', 'floatShares', 'companyOfficers', 'bid']
        for k in expected_keys:
-            print(k)
            self.assertIn("symbol", data.keys(), f"Did not find expected key '{k}' in info dict")
        self.assertEqual(self.symbols[0], data["symbol"], "Wrong symbol value in info dict")

--- a/yfinance/base.py
+++ b/yfinance/base.py
@@ -66,17 +66,22 @@ class TickerBase:
        if self.ticker == "":
            raise ValueError("Empty ticker name")

+        self._data: YfData = YfData(session=session)
+        if proxy is not _SENTINEL_:
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
+            self._data._set_proxy(proxy)
+
        # accept isin as ticker
        if utils.is_isin(self.ticker):
            isin = self.ticker
-            self.ticker = utils.get_ticker_by_isin(self.ticker, None, session)
+            c = cache.get_isin_cache()
+            self.ticker = c.lookup(isin)
+            if not self.ticker:
+                self.ticker = utils.get_ticker_by_isin(isin)
            if self.ticker == "":
                raise ValueError(f"Invalid ISIN number: {isin}")
-
-        self._data: YfData = YfData(session=session)
-        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
-            self._data._set_proxy(proxy)
+            if self.ticker:
+                c.store(isin, self.ticker)

        # self._price_history = PriceHistory(self._data, self.ticker)
        self._price_history = None  # lazy-load
@@ -176,7 +181,7 @@ class TickerBase:
        Columns: period  strongBuy  buy  hold  sell  strongSell
        """
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._quote.recommendations
@@ -186,7 +191,7 @@ class TickerBase:

    def get_recommendations_summary(self, proxy=_SENTINEL_, as_dict=False):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        return self.get_recommendations(as_dict=as_dict)
@@ -198,7 +203,7 @@ class TickerBase:
        Columns: firm toGrade fromGrade action
        """
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._quote.upgrades_downgrades
@@ -208,21 +213,21 @@ class TickerBase:

    def get_calendar(self, proxy=_SENTINEL_) -> dict:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        return self._quote.calendar

    def get_sec_filings(self, proxy=_SENTINEL_) -> dict:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        return self._quote.sec_filings

    def get_major_holders(self, proxy=_SENTINEL_, as_dict=False):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._holders.major
@@ -232,7 +237,7 @@ class TickerBase:

    def get_institutional_holders(self, proxy=_SENTINEL_, as_dict=False):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._holders.institutional
@@ -243,7 +248,7 @@ class TickerBase:

    def get_mutualfund_holders(self, proxy=_SENTINEL_, as_dict=False):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._holders.mutualfund
@@ -254,7 +259,7 @@ class TickerBase:

    def get_insider_purchases(self, proxy=_SENTINEL_, as_dict=False):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._holders.insider_purchases
@@ -265,7 +270,7 @@ class TickerBase:

    def get_insider_transactions(self, proxy=_SENTINEL_, as_dict=False):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._holders.insider_transactions
@@ -276,7 +281,7 @@ class TickerBase:

    def get_insider_roster_holders(self, proxy=_SENTINEL_, as_dict=False):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._holders.insider_roster
@@ -287,7 +292,7 @@ class TickerBase:

    def get_info(self, proxy=_SENTINEL_) -> dict:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._quote.info
@@ -295,21 +300,16 @@ class TickerBase:

    def get_fast_info(self, proxy=_SENTINEL_):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        if self._fast_info is None:
            self._fast_info = FastInfo(self)
        return self._fast_info

-    @property
-    def basic_info(self):
-        warnings.warn("'Ticker.basic_info' is deprecated and will be removed in future, Switch to 'Ticker.fast_info'", DeprecationWarning)
-        return self.fast_info
-
    def get_sustainability(self, proxy=_SENTINEL_, as_dict=False):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._quote.sustainability
@@ -319,7 +319,7 @@ class TickerBase:

    def get_analyst_price_targets(self, proxy=_SENTINEL_) -> dict:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        """
@@ -330,7 +330,7 @@ class TickerBase:

    def get_earnings_estimate(self, proxy=_SENTINEL_, as_dict=False):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        """
@@ -342,7 +342,7 @@ class TickerBase:

    def get_revenue_estimate(self, proxy=_SENTINEL_, as_dict=False):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        """
@@ -354,7 +354,7 @@ class TickerBase:

    def get_earnings_history(self, proxy=_SENTINEL_, as_dict=False):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        """
@@ -370,7 +370,7 @@ class TickerBase:
        Columns:    current  7daysAgo  30daysAgo  60daysAgo  90daysAgo
        """
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._analysis.eps_trend
@@ -382,7 +382,7 @@ class TickerBase:
        Columns:    upLast7days  upLast30days  downLast7days  downLast30days
        """
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._analysis.eps_revisions
@@ -394,7 +394,7 @@ class TickerBase:
        Columns:    stock  industry  sector  index
        """
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._analysis.growth_estimates
@@ -411,7 +411,7 @@ class TickerBase:
                Default is "yearly"
        """
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        if self._fundamentals.earnings is None:
@@ -438,7 +438,7 @@ class TickerBase:
                Default is "yearly"
        """
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._fundamentals.financials.get_income_time_series(freq=freq)
@@ -452,14 +452,14 @@ class TickerBase:

    def get_incomestmt(self, proxy=_SENTINEL_, as_dict=False, pretty=False, freq="yearly"):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        return self.get_income_stmt(proxy, as_dict, pretty, freq)

    def get_financials(self, proxy=_SENTINEL_, as_dict=False, pretty=False, freq="yearly"):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        return self.get_income_stmt(proxy, as_dict, pretty, freq)
@@ -478,7 +478,7 @@ class TickerBase:
                Default is "yearly"
        """
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)


@@ -493,7 +493,7 @@ class TickerBase:

    def get_balancesheet(self, proxy=_SENTINEL_, as_dict=False, pretty=False, freq="yearly"):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        return self.get_balance_sheet(proxy, as_dict, pretty, freq)
@@ -512,7 +512,7 @@ class TickerBase:
                Default is "yearly"
        """
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)


@@ -527,37 +527,37 @@ class TickerBase:

    def get_cashflow(self, proxy=_SENTINEL_, as_dict=False, pretty=False, freq="yearly"):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)
        return self.get_cash_flow(proxy, as_dict, pretty, freq)

    def get_dividends(self, proxy=_SENTINEL_, period="max") -> pd.Series:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)
        return self._lazy_load_price_history().get_dividends(period=period)

    def get_capital_gains(self, proxy=_SENTINEL_, period="max") -> pd.Series:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)
        return self._lazy_load_price_history().get_capital_gains(period=period)

    def get_splits(self, proxy=_SENTINEL_, period="max") -> pd.Series:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)
        return self._lazy_load_price_history().get_splits(period=period)

    def get_actions(self, proxy=_SENTINEL_, period="max") -> pd.Series:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)
        return self._lazy_load_price_history().get_actions(period=period)

    def get_shares(self, proxy=_SENTINEL_, as_dict=False) -> Union[pd.DataFrame, dict]:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        data = self._fundamentals.shares
@@ -570,7 +570,7 @@ class TickerBase:
        logger = utils.get_yf_logger()

        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        # Process dates
@@ -624,7 +624,7 @@ class TickerBase:

    def get_isin(self, proxy=_SENTINEL_) -> Optional[str]:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        # *** experimental ***
@@ -670,7 +670,7 @@ class TickerBase:
        logger = utils.get_yf_logger()

        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        tab_queryrefs = {
@@ -722,7 +722,7 @@ class TickerBase:
        logger = utils.get_yf_logger()

        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        clamped_limit = min(limit, 100)  # YF caps at 100, don't go higher
@@ -783,14 +783,14 @@ class TickerBase:

    def get_history_metadata(self, proxy=_SENTINEL_) -> dict:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        return self._lazy_load_price_history().get_history_metadata(proxy)

    def get_funds_data(self, proxy=_SENTINEL_) -> Optional[FundsData]:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        if not self._funds_data:
--- a/yfinance/cache.py
+++ b/yfinance/cache.py
@@ -3,13 +3,15 @@ from threading import Lock
 import os as _os
 import platformdirs as _ad
 import atexit as _atexit
-import datetime as _datetime
+import datetime as _dt
 import pickle as _pkl

 from .utils import get_yf_logger

 _cache_init_lock = Lock()

+
+
 # --------------
 # TimeZone cache
 # --------------
@@ -105,7 +107,7 @@ _atexit.register(_TzDBManager.close_db)


 tz_db_proxy = _peewee.Proxy()
-class _KV(_peewee.Model):
+class _TZ_KV(_peewee.Model):
    key = _peewee.CharField(primary_key=True)
    value = _peewee.CharField(null=True)
    
@@ -146,11 +148,11 @@ class _TzCache:
        db.connect()
        tz_db_proxy.initialize(db)
        try:
-            db.create_tables([_KV])
+            db.create_tables([_TZ_KV])
        except _peewee.OperationalError as e:
            if 'WITHOUT' in str(e):
-                _KV._meta.without_rowid = False
-                db.create_tables([_KV])
+                _TZ_KV._meta.without_rowid = False
+                db.create_tables([_TZ_KV])
            else:
                raise
        self.initialised = 1  # success
@@ -166,8 +168,8 @@ class _TzCache:
            return None

        try:
-            return _KV.get(_KV.key == key).value
-        except _KV.DoesNotExist:
+            return _TZ_KV.get(_TZ_KV.key == key).value
+        except _TZ_KV.DoesNotExist:
            return None

    def store(self, key, value):
@@ -185,18 +187,18 @@ class _TzCache:
            return
        try:
            if value is None:
-                q = _KV.delete().where(_KV.key == key)
+                q = _TZ_KV.delete().where(_TZ_KV.key == key)
                q.execute()
                return
            with db.atomic():
-                _KV.insert(key=key, value=value).execute()
+                _TZ_KV.insert(key=key, value=value).execute()
        except _peewee.IntegrityError:
            # Integrity error means the key already exists. Try updating the key.
            old_value = self.lookup(key)
            if old_value != value:
                get_yf_logger().debug(f"Value for key {key} changed from {old_value} to {value}.")
                with db.atomic():
-                    q = _KV.update(value=value).where(_KV.key == key)
+                    q = _TZ_KV.update(value=value).where(_TZ_KV.key == key)
                    q.execute()


@@ -301,16 +303,16 @@ class ISODateTimeField(_peewee.DateTimeField):
    # because user discovered peewee allowed an invalid datetime
    # to get written.
    def db_value(self, value):
-        if value and isinstance(value, _datetime.datetime):
+        if value and isinstance(value, _dt.datetime):
            return value.isoformat()
        return super().db_value(value)
    def python_value(self, value):
        if value and isinstance(value, str) and 'T' in value:
-            return _datetime.datetime.fromisoformat(value)
+            return _dt.datetime.fromisoformat(value)
        return super().python_value(value)
 class _CookieSchema(_peewee.Model):
    strategy = _peewee.CharField(primary_key=True)
-    fetch_date = ISODateTimeField(default=_datetime.datetime.now)
+    fetch_date = ISODateTimeField(default=_dt.datetime.now)
    
    # Which cookie type depends on strategy
    cookie_bytes = _peewee.BlobField()
@@ -374,7 +376,7 @@ class _CookieCache:
        try:
            data =  _CookieSchema.get(_CookieSchema.strategy == strategy)
            cookie = _pkl.loads(data.cookie_bytes)
-            return {'cookie':cookie, 'age':_datetime.datetime.now()-data.fetch_date}
+            return {'cookie':cookie, 'age':_dt.datetime.now()-data.fetch_date}
        except _CookieSchema.DoesNotExist:
            return None

@@ -415,6 +417,211 @@ def get_cookie_cache():



+# --------------
+# ISIN cache
+# --------------
+
+class _ISINCacheException(Exception):
+    pass
+
+
+class _ISINCacheDummy:
+    """Dummy cache to use if isin cache is disabled"""
+
+    def lookup(self, isin):
+        return None
+
+    def store(self, isin, tkr):
+        pass
+
+    @property
+    def tz_db(self):
+        return None
+
+
+class _ISINCacheManager:
+    _isin_cache = None
+
+    @classmethod
+    def get_isin_cache(cls):
+        if cls._isin_cache is None:
+            with _cache_init_lock:
+                cls._initialise()
+        return cls._isin_cache
+
+    @classmethod
+    def _initialise(cls, cache_dir=None):
+        cls._isin_cache = _ISINCache()
+
+
+class _ISINDBManager:
+    _db = None
+    _cache_dir = _os.path.join(_ad.user_cache_dir(), "py-yfinance")
+
+    @classmethod
+    def get_database(cls):
+        if cls._db is None:
+            cls._initialise()
+        return cls._db
+
+    @classmethod
+    def close_db(cls):
+        if cls._db is not None:
+            try:
+                cls._db.close()
+            except Exception:
+                # Must discard exceptions because Python trying to quit.
+                pass
+
+
+    @classmethod
+    def _initialise(cls, cache_dir=None):
+        if cache_dir is not None:
+            cls._cache_dir = cache_dir
+
+        if not _os.path.isdir(cls._cache_dir):
+            try:
+                _os.makedirs(cls._cache_dir)
+            except OSError as err:
+                raise _ISINCacheException(f"Error creating ISINCache folder: '{cls._cache_dir}' reason: {err}")
+        elif not (_os.access(cls._cache_dir, _os.R_OK) and _os.access(cls._cache_dir, _os.W_OK)):
+            raise _ISINCacheException(f"Cannot read and write in ISINCache folder: '{cls._cache_dir}'")
+
+        cls._db = _peewee.SqliteDatabase(
+            _os.path.join(cls._cache_dir, 'isin-tkr.db'),
+            pragmas={'journal_mode': 'wal', 'cache_size': -64}
+        )
+
+    @classmethod
+    def set_location(cls, new_cache_dir):
+        if cls._db is not None:
+            cls._db.close()
+            cls._db = None
+        cls._cache_dir = new_cache_dir
+
+    @classmethod
+    def get_location(cls):
+        return cls._cache_dir
+
+# close DB when Python exists
+_atexit.register(_ISINDBManager.close_db)
+
+
+isin_db_proxy = _peewee.Proxy()
+class _ISIN_KV(_peewee.Model):
+    key = _peewee.CharField(primary_key=True)
+    value = _peewee.CharField(null=True)
+    created_at = _peewee.DateTimeField(default=_dt.datetime.now)
+    
+    class Meta:
+        database = isin_db_proxy
+        without_rowid = True
+
+
+class _ISINCache:
+    def __init__(self):
+        self.initialised = -1
+        self.db = None
+        self.dummy = False
+
+    def get_db(self):
+        if self.db is not None:
+            return self.db
+
+        try:
+            self.db = _ISINDBManager.get_database()
+        except _ISINCacheException as err:
+            get_yf_logger().info(f"Failed to create ISINCache, reason: {err}. "
+                                 "ISINCache will not be used. "
+                                 "Tip: You can direct cache to use a different location with 'set_isin_cache_location(mylocation)'")
+            self.dummy = True
+            return None
+        return self.db
+
+    def initialise(self):
+        if self.initialised != -1:
+            return
+
+        db = self.get_db()
+        if db is None:
+            self.initialised = 0  # failure
+            return
+
+        db.connect()
+        isin_db_proxy.initialize(db)
+        try:
+            db.create_tables([_ISIN_KV])
+        except _peewee.OperationalError as e:
+            if 'WITHOUT' in str(e):
+                _ISIN_KV._meta.without_rowid = False
+                db.create_tables([_ISIN_KV])
+            else:
+                raise
+        self.initialised = 1  # success
+
+    def lookup(self, key):
+        if self.dummy:
+            return None
+
+        if self.initialised == -1:
+            self.initialise()
+
+        if self.initialised == 0:  # failure
+            return None
+
+        try:
+            return _ISIN_KV.get(_ISIN_KV.key == key).value
+        except _ISIN_KV.DoesNotExist:
+            return None
+
+    def store(self, key, value):
+        if self.dummy:
+            return
+
+        if self.initialised == -1:
+            self.initialise()
+
+        if self.initialised == 0:  # failure
+            return
+
+        db = self.get_db()
+        if db is None:
+            return
+        try:
+            if value is None:
+                q = _ISIN_KV.delete().where(_ISIN_KV.key == key)
+                q.execute()
+                return
+
+            # Remove existing rows with same value that are older than 1 week
+            one_week_ago = _dt.datetime.now() - _dt.timedelta(weeks=1)
+            old_rows_query = _ISIN_KV.delete().where(
+                (_ISIN_KV.value == value) & 
+                (_ISIN_KV.created_at < one_week_ago)
+            )
+            old_rows_query.execute()
+
+            with db.atomic():
+                _ISIN_KV.insert(key=key, value=value).execute()
+
+        except _peewee.IntegrityError:
+            # Integrity error means the key already exists. Try updating the key.
+            old_value = self.lookup(key)
+            if old_value != value:
+                get_yf_logger().debug(f"Value for key {key} changed from {old_value} to {value}.")
+                with db.atomic():
+                    q = _ISIN_KV.update(value=value, created_at=_dt.datetime.now()).where(_ISIN_KV.key == key)
+                    q.execute()
+
+
+def get_isin_cache():
+    return _ISINCacheManager.get_isin_cache()
+
+
+# --------------
+# Utils
+# --------------
+
 def set_cache_location(cache_dir: str):
    """
    Sets the path to create the "py-yfinance" cache folder in.
@@ -425,6 +632,7 @@ def set_cache_location(cache_dir: str):
    """
    _TzDBManager.set_location(cache_dir)
    _CookieDBManager.set_location(cache_dir)
+    _ISINDBManager.set_location(cache_dir)

 def set_tz_cache_location(cache_dir: str):
    set_cache_location(cache_dir)
--- a/yfinance/data.py
+++ b/yfinance/data.py
@@ -223,6 +223,10 @@ class YfData(metaclass=SingletonMeta):
        else:
            crumb_response = self._session.get(**get_args)
        self._crumb = crumb_response.text
+        if crumb_response.status_code == 429 or "Too Many Requests" in self._crumb:
+            utils.get_yf_logger().debug(f"Didn't receive crumb {self._crumb}")
+            raise YFRateLimitError()
+
        if self._crumb is None or '<html>' in self._crumb:
            utils.get_yf_logger().debug("Didn't receive crumb")
            return None
@@ -327,6 +331,10 @@ class YfData(metaclass=SingletonMeta):
            r = self._session.get(**get_args)
        self._crumb = r.text

+        if r.status_code == 429 or "Too Many Requests" in self._crumb:
+            utils.get_yf_logger().debug(f"Didn't receive crumb {self._crumb}")
+            raise YFRateLimitError()
+
        if self._crumb is None or '<html>' in self._crumb or self._crumb == '':
            utils.get_yf_logger().debug("Didn't receive crumb")
            return None
@@ -360,11 +368,11 @@ class YfData(metaclass=SingletonMeta):
    @utils.log_indent_decorator
    def get(self, url, params=None, timeout=30):
        return self._make_request(url, request_method = self._session.get, params=params, timeout=timeout)
-    
+
    @utils.log_indent_decorator
    def post(self, url, body, params=None, timeout=30):
        return self._make_request(url, request_method = self._session.post, body=body, params=params, timeout=timeout)
-    
+
    @utils.log_indent_decorator
    def _make_request(self, url, request_method, body=None, params=None, timeout=30):
        # Important: treat input arguments as immutable.
@@ -394,7 +402,7 @@ class YfData(metaclass=SingletonMeta):

        if body:
            request_args['json'] = body
-        
+
        response = request_method(**request_args)
        utils.get_yf_logger().debug(f'response code={response.status_code}')
        if response.status_code >= 400:
--- a/yfinance/domain/domain.py
+++ b/yfinance/domain/domain.py
@@ -1,10 +1,11 @@
 from abc import ABC, abstractmethod
-from ..ticker import Ticker
+import pandas as _pd
+from typing import Dict, List, Optional
+import warnings
+
 from ..const import _QUERY1_URL_, _SENTINEL_
 from ..data import YfData
-from ..utils import print_once
-from typing import Dict, List, Optional
-import pandas as _pd
+from ..ticker import Ticker

 _QUERY_URL_ = f'{_QUERY1_URL_}/v1/finance'

@@ -26,7 +27,7 @@ class Domain(ABC):
        self.session = session
        self._data: YfData = YfData(session=session)
        if proxy is not _SENTINEL_:
-            print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        self._name: Optional[str] = None
--- a/yfinance/domain/industry.py
+++ b/yfinance/domain/industry.py
@@ -1,12 +1,14 @@
 from __future__ import print_function
-from typing import Dict, Optional

 import pandas as _pd
+from typing import Dict, Optional
+import warnings
+
+from .. import utils
+from ..const import _SENTINEL_
+from ..data import YfData

 from .domain import Domain, _QUERY_URL_
-from .. import utils
-from ..data import YfData
-from ..const import _SENTINEL_

 class Industry(Domain):
    """
@@ -20,8 +22,9 @@ class Industry(Domain):
            session (optional): The session to use for requests.
        """
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
-            YfData(session=session, proxy=proxy)
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
+            YfData(proxy=proxy)
+        YfData(session=session)
        super(Industry, self).__init__(key, session)
        self._query_url = f'{_QUERY_URL_}/industries/{self._key}'

--- a/yfinance/domain/market.py
+++ b/yfinance/domain/market.py
@@ -1,9 +1,9 @@
 import datetime as dt
-
-from ..data import YfData
-from ..data import utils
-from ..const import _QUERY1_URL_, _SENTINEL_
 import json as _json
+import warnings
+
+from ..const import _QUERY1_URL_, _SENTINEL_
+from ..data import utils, YfData

 class Market:
    def __init__(self, market:'str', session=None, proxy=_SENTINEL_, timeout=30):
@@ -13,7 +13,7 @@ class Market:

        self._data = YfData(session=self.session)
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        self._logger = utils.get_yf_logger()
--- a/yfinance/domain/sector.py
+++ b/yfinance/domain/sector.py
@@ -1,13 +1,14 @@
 from __future__ import print_function
-from typing import Dict, Optional
-from ..utils import dynamic_docstring, generate_list_table_from_dict
-from ..const import SECTOR_INDUSTY_MAPPING, _SENTINEL_

 import pandas as _pd
+from typing import Dict, Optional
+import warnings
+
+from ..const import SECTOR_INDUSTY_MAPPING, _SENTINEL_
+from ..data import YfData
+from ..utils import dynamic_docstring, generate_list_table_from_dict, get_yf_logger

 from .domain import Domain, _QUERY_URL_
-from .. import utils
-from ..data import YfData

 class Sector(Domain):
    """
@@ -28,7 +29,7 @@ class Sector(Domain):
                Map of sector and industry
        """
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            YfData(session=session, proxy=proxy)

        super(Sector, self).__init__(key, session)
@@ -147,7 +148,7 @@ class Sector(Domain):
            self._industries = self._parse_industries(data.get('industries', {}))

        except Exception as e:
-            logger = utils.get_yf_logger()
+            logger = get_yf_logger()
            logger.error(f"Failed to get sector data for '{self._key}' reason: {e}")
            logger.debug("Got response: ")
            logger.debug("-------------")
--- a/yfinance/lookup.py
+++ b/yfinance/lookup.py
@@ -20,8 +20,8 @@
 #

 import json as _json
-
 import pandas as pd
+import warnings

 from . import utils
 from .const import _QUERY1_URL_, _SENTINEL_
@@ -43,12 +43,12 @@ class Lookup:
    :param raise_errors: Raise exceptions on error (default True).
    """

-    def __init__(self, query: str, session=None, proxy=None, timeout=30, raise_errors=True):
+    def __init__(self, query: str, session=None, proxy=_SENTINEL_, timeout=30, raise_errors=True):
        self.session = session
        self._data = YfData(session=self.session)

        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        self.query = query
--- a/yfinance/multi.py
+++ b/yfinance/multi.py
@@ -25,6 +25,7 @@ import logging
 import time as _time
 import traceback
 from typing import Union
+import warnings

 import multitasking as _multitasking
 import pandas as _pd
@@ -93,9 +94,15 @@ def download(tickers, start=None, end=None, actions=False, threads=True,
    logger = utils.get_yf_logger()
    session = session or requests.Session(impersonate="chrome")

+    # Ensure data initialised with session.
+    if proxy is not _SENTINEL_:
+        warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=3)
+        YfData(proxy=proxy)
+    YfData(session=session)
+
    if auto_adjust is None:
        # Warn users that default has changed to True
-        utils.print_once("YF.download() has changed argument auto_adjust default to True")
+        warnings.warn("YF.download() has changed argument auto_adjust default to True", FutureWarning, stacklevel=3)
        auto_adjust = True

    if logger.isEnabledFor(logging.DEBUG):
@@ -127,7 +134,7 @@ def download(tickers, start=None, end=None, actions=False, threads=True,
    for ticker in tickers:
        if utils.is_isin(ticker):
            isin = ticker
-            ticker = utils.get_ticker_by_isin(ticker, session=session)
+            ticker = utils.get_ticker_by_isin(ticker)
            shared._ISINS[ticker] = isin
        _tickers_.append(ticker)

@@ -143,13 +150,6 @@ def download(tickers, start=None, end=None, actions=False, threads=True,
    shared._ERRORS = {}
    shared._TRACEBACKS = {}

-    # Ensure data initialised with session.
-    if proxy is not _SENTINEL_:
-        utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
-        YfData(session=session, proxy=proxy)
-    else:
-        YfData(session=session)
-
    # download using threads
    if threads:
        if threads is True:
--- a/yfinance/scrapers/analysis.py
+++ b/yfinance/scrapers/analysis.py
@@ -1,17 +1,18 @@
+import curl_cffi
 import pandas as pd
-import requests
+import warnings

 from yfinance import utils
-from yfinance.data import YfData
 from yfinance.const import quote_summary_valid_modules, _SENTINEL_
-from yfinance.scrapers.quote import _QUOTE_SUMMARY_URL_
+from yfinance.data import YfData
 from yfinance.exceptions import YFException
+from yfinance.scrapers.quote import _QUOTE_SUMMARY_URL_

 class Analysis:

    def __init__(self, data: YfData, symbol: str, proxy=_SENTINEL_):
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            data._set_proxy(proxy)

        self._data = data
@@ -178,7 +179,7 @@ class Analysis:
        params_dict = {"modules": modules, "corsDomain": "finance.yahoo.com", "formatted": "false", "symbol": self._symbol}
        try:
            result = self._data.get_raw_json(_QUOTE_SUMMARY_URL_ + f"/{self._symbol}", params=params_dict)
-        except requests.exceptions.HTTPError as e:
+        except curl_cffi.requests.exceptions.HTTPError as e:
            utils.get_yf_logger().error(str(e))
            return None
        return result
--- a/yfinance/scrapers/fundamentals.py
+++ b/yfinance/scrapers/fundamentals.py
@@ -12,7 +12,7 @@ class Fundamentals:

    def __init__(self, data: YfData, symbol: str, proxy=const._SENTINEL_):
        if proxy is not const._SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            data._set_proxy(proxy)

        self._data = data
@@ -53,7 +53,7 @@ class Financials:

    def get_income_time_series(self, freq="yearly", proxy=const._SENTINEL_) -> pd.DataFrame:
        if proxy is not const._SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        res = self._income_time_series
@@ -63,7 +63,7 @@ class Financials:

    def get_balance_sheet_time_series(self, freq="yearly", proxy=const._SENTINEL_) -> pd.DataFrame:
        if proxy is not const._SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        res = self._balance_sheet_time_series
@@ -73,7 +73,7 @@ class Financials:

    def get_cash_flow_time_series(self, freq="yearly", proxy=const._SENTINEL_) -> pd.DataFrame:
        if proxy is not const._SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        res = self._cash_flow_time_series
--- a/yfinance/scrapers/funds.py
+++ b/yfinance/scrapers/funds.py
@@ -1,11 +1,11 @@
 import pandas as pd
-
-from yfinance.data import YfData
-from yfinance.const import _BASE_URL_, _SENTINEL_
-from yfinance.exceptions import YFDataException
-from yfinance import utils
-
 from typing import Dict, Optional
+import warnings
+
+from yfinance import utils
+from yfinance.const import _BASE_URL_, _SENTINEL_
+from yfinance.data import YfData
+from yfinance.exceptions import YFDataException

 _QUOTE_SUMMARY_URL_ = f"{_BASE_URL_}/v10/finance/quoteSummary/"

@@ -26,7 +26,7 @@ class FundsData:
        self._data = data
        self._symbol = symbol
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)
        
        # quoteType
--- a/yfinance/scrapers/history.py
+++ b/yfinance/scrapers/history.py
@@ -1,12 +1,13 @@
+from curl_cffi import requests
+from math import isclose
+import bisect
 import datetime as _datetime
 import dateutil as _dateutil
 import logging
 import numpy as np
 import pandas as pd
-from math import isclose
 import time as _time
-import bisect
-from curl_cffi import requests
+import warnings

 from yfinance import shared, utils
 from yfinance.const import _BASE_URL_, _PRICE_COLNAMES_, _SENTINEL_
@@ -18,7 +19,7 @@ class PriceHistory:
        self.ticker = ticker.upper()
        self.tz = tz
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=5)
            self._data._set_proxy(proxy)
        self.session = session or requests.Session(impersonate="chrome")

@@ -77,7 +78,7 @@ class PriceHistory:
        logger = utils.get_yf_logger()

        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=5)
            self._data._set_proxy(proxy)

        interval_user = interval
@@ -133,13 +134,14 @@ class PriceHistory:
                end = utils._parse_user_dt(end, tz)
            if start is None:
                if interval == "1m":
-                    start = end - 604800   # 7 days
-                elif interval in ("5m", "15m", "30m", "90m"):
+                    start = end - 691200  # 8 days
+                elif interval in ("2m", "5m", "15m", "30m", "90m"):
                    start = end - 5184000  # 60 days
-                elif interval in ("1h", '60m'):
+                elif interval in ("1h", "60m"):
                    start = end - 63072000  # 730 days
                else:
                    start = end - 3122064000  # 99 years
+                start += 5 # allow for processing time
            else:
                start = utils._parse_user_dt(start, tz)
            params = {"period1": start, "period2": end}
@@ -481,7 +483,7 @@ class PriceHistory:

    def get_history_metadata(self, proxy=_SENTINEL_) -> dict:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=3)
            self._data._set_proxy(proxy)

        if self._history_metadata is None or 'tradingPeriods' not in self._history_metadata:
@@ -496,7 +498,7 @@ class PriceHistory:

    def get_dividends(self, period="max", proxy=_SENTINEL_) -> pd.Series:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=3)
            self._data._set_proxy(proxy)

        df = self._get_history_cache(period=period)
@@ -507,7 +509,7 @@ class PriceHistory:

    def get_capital_gains(self, period="max", proxy=_SENTINEL_) -> pd.Series:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=3)
            self._data._set_proxy(proxy)

        df = self._get_history_cache(period=period)
@@ -518,7 +520,7 @@ class PriceHistory:

    def get_splits(self, period="max", proxy=_SENTINEL_) -> pd.Series:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=3)
            self._data._set_proxy(proxy)

        df = self._get_history_cache(period=period)
@@ -529,7 +531,7 @@ class PriceHistory:

    def get_actions(self, period="max", proxy=_SENTINEL_) -> pd.Series:
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=3)
            self._data._set_proxy(proxy)

        df = self._get_history_cache(period=period)
--- a/yfinance/scrapers/holders.py
+++ b/yfinance/scrapers/holders.py
@@ -1,9 +1,10 @@
+import curl_cffi
 import pandas as pd
-import requests
+import warnings

 from yfinance import utils
-from yfinance.data import YfData
 from yfinance.const import _BASE_URL_, _SENTINEL_
+from yfinance.data import YfData
 from yfinance.exceptions import YFDataException

 _QUOTE_SUMMARY_URL_ = f"{_BASE_URL_}/v10/finance/quoteSummary"
@@ -15,7 +16,7 @@ class Holders:
        self._data = data
        self._symbol = symbol
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            data._set_proxy(proxy)

        self._major = None
@@ -73,7 +74,7 @@ class Holders:
    def _fetch_and_parse(self):
        try:
            result = self._fetch()
-        except requests.exceptions.HTTPError as e:
+        except curl_cffi.requests.exceptions.HTTPError as e:
            utils.get_yf_logger().error(str(e))

            self._major = pd.DataFrame()
--- a/yfinance/scrapers/quote.py
+++ b/yfinance/scrapers/quote.py
@@ -1,13 +1,13 @@
+import curl_cffi
 import datetime
 import json
-
 import numpy as _np
 import pandas as pd
-import requests
+import warnings

 from yfinance import utils
-from yfinance.data import YfData
 from yfinance.const import quote_summary_valid_modules, _BASE_URL_, _QUERY1_URL_, _SENTINEL_
+from yfinance.data import YfData
 from yfinance.exceptions import YFDataException, YFException

 info_retired_keys_price = {"currentPrice", "dayHigh", "dayLow", "open", "previousClose", "volume", "volume24Hr"}
@@ -29,7 +29,7 @@ class FastInfo:
    def __init__(self, tickerBaseObject, proxy=_SENTINEL_):
        self._tkr = tickerBaseObject
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._tkr._data._set_proxy(proxy)

        self._prices_1y = None
@@ -490,7 +490,7 @@ class Quote:
        self._data = data
        self._symbol = symbol
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        self._info = None
@@ -588,7 +588,7 @@ class Quote:
        params_dict = {"modules": modules, "corsDomain": "finance.yahoo.com", "formatted": "false", "symbol": self._symbol}
        try:
            result = self._data.get_raw_json(_QUOTE_SUMMARY_URL_ + f"/{self._symbol}", params=params_dict)
-        except requests.exceptions.HTTPError as e:
+        except curl_cffi.requests.exceptions.HTTPError as e:
            utils.get_yf_logger().error(str(e))
            return None
        return result
@@ -597,7 +597,7 @@ class Quote:
        params_dict = {"symbols": self._symbol, "formatted": "false"}
        try:
            result = self._data.get_raw_json(f"{_QUERY1_URL_}/v7/finance/quote?", params=params_dict)
-        except requests.exceptions.HTTPError as e:
+        except curl_cffi.requests.exceptions.HTTPError as e:
            utils.get_yf_logger().error(str(e))
            return None
        return result
--- a/yfinance/screener/screener.py
+++ b/yfinance/screener/screener.py
@@ -1,14 +1,14 @@
-from .query import EquityQuery as EqyQy
-from .query import FundQuery as FndQy
-from .query import QueryBase, EquityQuery, FundQuery
+import curl_cffi
+from typing import Union
+import warnings

 from yfinance.const import _QUERY1_URL_, _SENTINEL_
 from yfinance.data import YfData
+from ..utils import dynamic_docstring, generate_list_table_from_dict_universal

-from ..utils import dynamic_docstring, generate_list_table_from_dict_universal, print_once
-
-from typing import Union
-import requests
+from .query import EquityQuery as EqyQy
+from .query import FundQuery as FndQy
+from .query import QueryBase, EquityQuery, FundQuery

 _SCREENER_URL_ = f"{_QUERY1_URL_}/v1/finance/screener"
 _PREDEFINED_URL_ = f"{_SCREENER_URL_}/predefined/saved"
@@ -112,7 +112,7 @@ def screen(query: Union[str, EquityQuery, FundQuery],
    """

    if proxy is not _SENTINEL_:
-        print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+        warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
        _data = YfData(session=session, proxy=proxy)
    else:
        _data = YfData(session=session)
@@ -157,7 +157,7 @@ def screen(query: Union[str, EquityQuery, FundQuery],
        # Switch to Yahoo's predefined endpoint

        if size is not None:
-            print_once("YF deprecation warning: 'size' argument is deprecated for predefined screens, set 'count' instead.")
+            warnings.warn("Screen 'size' argument is deprecated for predefined screens, set 'count' instead.", DeprecationWarning, stacklevel=2)
            count = size
            size = None
            fields['count'] = fields['size']
@@ -170,7 +170,7 @@ def screen(query: Union[str, EquityQuery, FundQuery],
        resp = _data.get(url=_PREDEFINED_URL_, params=params_dict)
        try:
            resp.raise_for_status()
-        except requests.exceptions.HTTPError:
+        except curl_cffi.requests.exceptions.HTTPError:
            if query not in PREDEFINED_SCREENER_QUERIES:
                print(f"yfinance.screen: '{query}' is probably not a predefined query.")
            raise
--- a/yfinance/search.py
+++ b/yfinance/search.py
@@ -20,6 +20,7 @@
 #

 import json as _json
+import warnings

 from . import utils
 from .const import _BASE_URL_, _SENTINEL_
@@ -52,7 +53,7 @@ class Search:
        self._data = YfData(session=self.session)
        
        if proxy is not _SENTINEL_:
-            utils.print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)

        self.query = query
--- a/yfinance/ticker.py
+++ b/yfinance/ticker.py
@@ -22,17 +22,21 @@
 from __future__ import print_function

 from collections import namedtuple as _namedtuple
-from .scrapers.funds import FundsData
+import warnings

 import pandas as _pd

 from .base import TickerBase
 from .const import _BASE_URL_, _SENTINEL_
+from .scrapers.funds import FundsData


 class Ticker(TickerBase):
    def __init__(self, ticker, session=None, proxy=_SENTINEL_):
-        super(Ticker, self).__init__(ticker, session=session, proxy=proxy)
+        if proxy is not _SENTINEL_:
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
+            self._data._set_proxy(proxy)
+        super(Ticker, self).__init__(ticker, session=session)
        self._expirations = {}
        self._underlying  = {}

--- a/yfinance/tickers.py
+++ b/yfinance/tickers.py
@@ -21,9 +21,10 @@

 from __future__ import print_function

+import warnings
+
 from . import Ticker, multi
 from .live import WebSocket
-from .utils import print_once
 from .data import YfData
 from .const import _SENTINEL_

@@ -56,8 +57,9 @@ class Tickers:
                timeout=10, **kwargs):

        if proxy is not _SENTINEL_:
-            print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)
+            proxy = _SENTINEL_

        return self.download(
            period, interval,
@@ -75,8 +77,9 @@ class Tickers:
                 timeout=10, **kwargs):

        if proxy is not _SENTINEL_:
-            print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
+            warnings.warn("Set proxy via new config function: yf.set_config(proxy=proxy)", DeprecationWarning, stacklevel=2)
            self._data._set_proxy(proxy)
+            proxy = _SENTINEL_

        data = multi.download(self.symbols,
                              start=start, end=end,
--- a/yfinance/utils.py
+++ b/yfinance/utils.py
@@ -27,7 +27,7 @@ import re
 import re as _re
 import sys as _sys
 import threading
-from functools import lru_cache, wraps
+from functools import wraps
 from inspect import getmembers
 from types import FunctionType
 from typing import List, Optional
@@ -50,13 +50,6 @@ def attributes(obj):
        if name[0] != '_' and name not in disallowed_names and hasattr(obj, name)}


-@lru_cache(maxsize=20)
-def print_once(msg):
-    # 'warnings' module suppression of repeat messages does not work.
-    # This function replicates correct behaviour
-    print(msg)
-
-
 # Logging
 # Note: most of this logic is adding indentation with function depth,
 #       so that DEBUG log is readable.
@@ -181,18 +174,14 @@ def is_isin(string):
    return bool(_re.match("^([A-Z]{2})([A-Z0-9]{9})([0-9])$", string))


-def get_all_by_isin(isin, proxy=const._SENTINEL_, session=None):
+def get_all_by_isin(isin):
    if not (is_isin(isin)):
        raise ValueError("Invalid ISIN number")

-    if proxy is not const._SENTINEL_:
-        print_once("YF deprecation warning: set proxy via new config function: yf.set_config(proxy=proxy)")
-        proxy = None
-
    # Deferred this to prevent circular imports
    from .search import Search

-    search = Search(query=isin, max_results=1, session=session, proxy=proxy)
+    search = Search(query=isin, max_results=1)

    # Extract the first quote and news
    ticker = search.quotes[0] if search.quotes else {}
@@ -210,18 +199,18 @@ def get_all_by_isin(isin, proxy=const._SENTINEL_, session=None):
    }


-def get_ticker_by_isin(isin, proxy=const._SENTINEL_, session=None):
-    data = get_all_by_isin(isin, proxy, session)
+def get_ticker_by_isin(isin):
+    data = get_all_by_isin(isin)
    return data.get('ticker', {}).get('symbol', '')


-def get_info_by_isin(isin, proxy=const._SENTINEL_, session=None):
-    data = get_all_by_isin(isin, proxy, session)
+def get_info_by_isin(isin):
+    data = get_all_by_isin(isin)
    return data.get('ticker', {})


-def get_news_by_isin(isin, proxy=const._SENTINEL_, session=None):
-    data = get_all_by_isin(isin, proxy, session)
+def get_news_by_isin(isin):
+    data = get_all_by_isin(isin)
    return data.get('news', {})


--- a/yfinance/version.py
+++ b/yfinance/version.py
@@ -1 +1 @@
-version = "0.2.61"
+version = "0.2.63"
Author	SHA1	Message	Date
ValueRaider	5812aa6a69	Version 0.2.63	2025-06-12 09:41:44 +01:00
ValueRaider	ea810b4b35	Merge pull request #2531 from ranaroussi/hotfix/download-isin Fix download()+ISIN	2025-06-12 09:41:00 +01:00
ValueRaider	53bce46929	Fix download()+ISIN	2025-06-12 08:54:57 +01:00
ValueRaider	0eb11c56b0	Version 0.2.62	2025-06-08 16:08:37 +01:00
ValueRaider	2981893f30	Merge pull request #2525 from ranaroussi/dev sync dev -> main	2025-06-08 16:02:33 +01:00
ValueRaider	3250386136	Merge pull request #2402 from cclauss/patch-1 GitHub Action: Replace archived ruff action with official action	2025-06-08 14:58:43 +01:00
ValueRaider	aa606642c0	Merge branch 'main' into patch-1	2025-06-08 14:58:10 +01:00
ValueRaider	cc0b03efd1	Merge pull request #2509 from cole-st-john/adjusting_max_period_logic2 adjusting for processing time in max period (reduced)	2025-06-08 12:52:55 +01:00
ValueRaider	39dd87080d	Merge pull request #2523 from ranaroussi/feature/print_once_replace_with_warnings Replace 'print_once' with warnings.	2025-06-07 22:27:18 +01:00
ValueRaider	72a2fd8955	Merge pull request #2516 from ranaroussi/feature/isin-cache Feature: ISIN cache	2025-06-07 21:21:09 +01:00
ValueRaider	dd62ce510e	Replace 'print_once' with warnings. Remove 'basic_info'.	2025-06-07 21:19:38 +01:00
ValueRaider	61ceb2b1a8	Merge branch 'dev' into feature/isin-cache	2025-06-07 18:03:47 +01:00
ValueRaider	5d7a298239	Merge pull request #2514 from ranaroussi/fix/isin-proxy-msg Fix ISIN proxy	2025-05-27 21:05:46 +01:00
ValueRaider	0192d2e194	Prune old ISINs from cache, because Yahoo won't serve	2025-05-25 12:27:57 +01:00
ValueRaider	8c6eb1afeb	ISIN->symbol cache	2025-05-25 12:09:51 +01:00
ValueRaider	ef60663bc2	Fix ISIN proxy	2025-05-25 11:48:42 +01:00
cole-st-john	d15cf378a1	Fix 'max' period - add 5 sec buffer for processing time - add '2m' interval - increase '1m' max to 8 days	2025-05-21 20:28:15 +01:00
ValueRaider	a9282e5739	Fix ruff	2025-05-17 11:25:10 +01:00
ValueRaider	a506838c3c	Merge pull request #2504 from ranaroussi/main sync main -> dev	2025-05-17 11:19:36 +01:00
ValueRaider	f716eec5fe	Little fixes for tests & proxy msg	2025-05-14 21:41:17 +01:00
ValueRaider	e769570f33	Tidy CONTRIBUTING.md	2025-05-14 21:15:16 +01:00
ValueRaider	3bc6bacf56	Replace requests.HTTPError with curl_cffi	2025-05-13 21:25:25 +01:00
ValueRaider	7db82f3496	Merge pull request #2491 from vsukhoml/crumb Fix for rate limit during getting crumb.	2025-05-13 20:52:00 +01:00
ValueRaider	4ac5cd87b3	Docs: simplify dev guide	2025-05-13 20:48:33 +01:00
Vadim Sukhomlinov	4a91008c09	Fix for rate limit during getting crumb. Address #2441, #2480 Don't check for cached crumb to be wrong since this shall not happen with a new flow.	2025-05-13 12:34:23 -07:00
Christian Clauss	b8ae8f317f	GitHub Action: Replace archived ruff action with official action https://github.com/ChartBoost/ruff-action has been archived so replace it with the official https://github.com/astral-sh/ruff-action from the creators of ruff.	2025-04-15 17:16:22 +02:00