numpy.core.defchararray.lower

numpy.core.defchararray.lower(a)

Return an array with the elements of a converted to lowercase.

Call str.lower element-wise.

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

Parameters :

a : array-like of str or unicode

Returns :

out : ndarray, str or unicode

Output array of str or unicode, depending on input type

See also

str.lower

Examples

>>> c = np.array(['A1B C', '1BCA', 'BCA1']); c
array(['A1B C', '1BCA', 'BCA1'],
      dtype='|S5')
>>> np.char.lower(c)
array(['a1b c', '1bca', 'bca1'],
      dtype='|S5')