FutureWarning: The argument 'date_parser' is deprecated and will be removed in a future version. Please use 'date_format' instead, or read your data in as 'object' dtype and then call 'to_datetime'

[christophscheuch]

When I use DataReader() to fetch data from "famafrench":

import pandas as pd # 2.0.3
import pandas_datareader as pdr # 0.10.0

start_date = "1960-01-01"
end_date = "2021-12-31"

factors_ff_monthly_raw = pdr.DataReader(name="F-F_Research_Data_Factors", data_source="famafrench", start=start_date, end=end_date)[0]

Then I get the following warning:

FutureWarning: The argument 'date_parser' is deprecated and will be removed in a future version. Please use 'date_format' instead, or read your data in as 'object' dtype and then call 'to_datetime'

Any way to avoid this warning or does the pandas-datareader module need an update?

[jusrojasrod]

Have you any update on this? I am with the same issue.

[christophscheuch]

I decided to turn off all future warnings for the project that I'm currently working on. Not elegant, but removes them from print outputs in documents:

import warnings
warnings.simplefilter(action="ignore", category=FutureWarning)