UserWarning: Could not infer format

[NewBiee]

Hi,

I have this code:

def get_rework_flags(logs, clean_df):
    """ Gets the flags used for rework """
    logger = logs['logger']
    # logger.info('Rework: Setting index on clean df')
    # clean_df = clean_df.set_index('Filename')
    logger.info('Rework: Extracting sent items')
    rework_df = clean_df.set_index('Filename')['Clean'].astype(
        str,
    ).str.lower().str.extractall('sent:(.*)').reset_index()
    rework_df.columns = ['Filename', 'date_num', 'date_sent']
    logger.info('Rework: Converting to dates')
    rework_df['date_sent'] = pd.to_datetime(
        rework_df['date_sent'], errors='coerce', exact=False,
    )

And I'm getting this error:

Output:
UserWarning: Could not infer format, so each element will be parsed individually, falling back to `dateutil`. To ensure parsing is consistent and as-expected, please specify a format.
  rework_df['date_sent'] = pd.to_datetime(

Please help