Raise error if rate limited

yfinance/data.py

@@ -10,6 +10,8 @@ from frozendict import frozendict
 from . import utils, cache
 import threading
 
+from .exceptions import YFRateLimitError
+
 cache_maxsize = 64
 
 
@@ -390,6 +392,10 @@ class YfData(metaclass=SingletonMeta):
             response = request_method(**request_args)
             utils.get_yf_logger().debug(f'response code={response.status_code}')
 
+            # Raise exception if rate limited
+            if response.status_code == 429:
+                raise YFRateLimitError()
+
         return response
 
     @lru_cache_freezeargs

yfinance/exceptions.py

@@ -45,3 +45,8 @@ class YFInvalidPeriodError(YFException):
         self.invalid_period = invalid_period
         self.valid_ranges = valid_ranges
         super().__init__(f"{self.ticker}: Period '{invalid_period}' is invalid, must be one of {valid_ranges}")
+
+
+class YFRateLimitError(YFException):
+    def __init__(self):
+        super().__init__("Too Many Requests. Rate limited. Try after a while.")

yfinance/scrapers/history.py

@@ -9,7 +9,7 @@ import bisect
 
 from yfinance import shared, utils
 from yfinance.const import _BASE_URL_, _PRICE_COLNAMES_
-from yfinance.exceptions import YFInvalidPeriodError, YFPricesMissingError, YFTzMissingError
+from yfinance.exceptions import YFInvalidPeriodError, YFPricesMissingError, YFTzMissingError, YFRateLimitError
 
 class PriceHistory:
     def __init__(self, data, ticker, tz, session=None, proxy=None):
@@ -184,6 +184,9 @@ class PriceHistory:
                                    "the issue. Thank you for your patience.")
 
             data = data.json()
+        # Special case for rate limits
+        except YFRateLimitError:
+            raise
         except Exception:
             if raise_errors:
                 raise