pandas.Series.str.isdigit — pandas 1.3.5 documentation
pandas.pydata.org › pandaspandas.Series.str.isdigit. ¶. Check whether all characters in each string are digits. This is equivalent to running the Python string method str.isdigit () for each element of the Series/Index. If a string has zero characters, False is returned for that check. Series or Index of boolean values with the same length as the original Series/Index.