FutureWarning: Logical ops (and, or, xor) between Pandas objects and dtype-less seque

[NewBiee]

I have had this method on my code, it's been working fine, but as of today my code fails on this method:

def get_flags(series, flags, regex_flag):
    """ Identifies whether the series contains the flags under consideration.

    Args:
        series (pandas.DataFrame.Series): Series against which regular expressions will be matched.
        flags (list): List of regular expressions to be evaluated
    """
    m = [False] * len(series)
    series = series.astype(str).str.lower()
    for i, flag in enumerate(flags):
        flag = flag.lower()
        m = m | series.astype(str).str.contains(
            flag.lower(), regex=regex_flag, case=True,
        )
    return m

Now I get this error and my code stops running:

Output:
FutureWarning: Logical ops (and, or, xor) between Pandas objects and dtype-less sequences (e.g. list, tuple) are deprecated and will raise in a future version. Wrap the object in a Series, Index, or np.array before operating instead.
  m = m | series.astype(str).str.contains(

Please help.