fix keyerror with single element list passed to Tickers

ranaroussi / yfinance

Download market data from Yahoo! Finance's API

https://aroussi.com/post/python-yahoo-finance

Apache License 2.0

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fix keyerror with single element list passed to Tickers #2068

Closed antoniouaa closed 1 month ago

antoniouaa commented 1 month ago

Remade this to fix issue #899

From previous PR,

I don't see any good reason to treat single element symbol lists passed to yfinance.Tickers as something special, instead perform the pandas.concat like you would normally (with multiple tickers).

Avoids a KeyError raised here, https://github.com/ranaroussi/yfinance/blob/9e2252e4516304efbd52d05ad66a5beb9a900e5e/yfinance/tickers.py#L83