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# pandas.Series.str.isalpha

Series.str.isalpha()

  Check whether all characters in each string are alphabetic.

  This is equivalent to running the Python string method `str.isalpha()` for each element of the Series/Index. If a string has zero characters, `False` is returned for that check.

  Returns:
    Series or Index of bool

      Series or Index of boolean values with the same length as the original Series/Index.

  See also

  `Series.str.isnumeric`

    Check whether all characters are numeric.

  `Series.str.isalnum`

    Check whether all characters are alphanumeric.

  `Series.str.isdigit`

    Check whether all characters are digits.

  `Series.str.isdecimal`

    Check whether all characters are decimal.

  `Series.str.isspace`

    Check whether all characters are whitespace.

  `Series.str.islower`

    Check whether all characters are lowercase.

  `Series.str.isascii`

    Check whether all characters are ascii.

  `Series.str.isupper`

    Check whether all characters are uppercase.

  `Series.str.istitle`

    Check whether all characters are titlecase.

  Examples

      >>> s1 = pd.Series(["one", "one1", "1", ""])
      >>> s1.str.isalpha()
      0     True
      1    False
      2    False
      3    False
      dtype: bool