TypeError: string indices must be integers
I imported this library but it's not giving error
from pandas_datareader import data as pdr
import datetime as dt
start_date = dt.datetime(2021, 1, 1)
end_date = dt.datetime(2021, 12, 31)
df = pdr.get_data_yahoo('AAPL', start=start_date, end=end_date)
print(df.head())