# numpy.char.isalnum

char.isalnum(a)

  Returns true for each element if all characters in the string are alphanumeric and there is at least one character, false otherwise.

  Calls str.isalnum element-wise.

  For 8-bit strings, this method is locale-dependent.

  Parameters:
    a array_like of str or unicode
  Returns:
    out ndarray

      Output array of str or unicode, depending on input type

  See also

  `str.isalnum`