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Add note about Alpha Vantage rate limit.

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This commit is contained in:
Chris Berkhout 2021-06-02 22:28:51 +02:00
parent cf429a1ce2
commit ee8bf69dbe
1 changed files with 5 additions and 1 deletions
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6
src/pricehist/sources/alphavantage.py
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@ -47,7 +47,11 @@ class AlphaVantage(BaseSource):
"will list all digital and physical currency symbols.\n"
"The PAIR for stocks is the stock symbol only. The quote currency "
f"will be determined automatically. {self._stock_symbols_message()}\n"
"The price type 'adjclose' is only available for stocks."
"The price type 'adjclose' is only available for stocks.\n"
"Alpha Vantage's standard API call frequency limits is 5 calls per "
"minute and 500 per day, so you may need to pause between successive "
"commands. Note that retrieving prices for one stock requires two "
"calls."
)
def _stock_symbols_message(self):