numpy.char.lower#

char.lower(a)[source]#

Return an array with the elements converted to lowercase.

Call str.lower element-wise.

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

Parameters:
aarray_like, with np.bytes_ or np.str_ dtype

Input array.

Returns:
outndarray, {str, 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='<U5')
>>> np.strings.lower(c)
array(['a1b c', '1bca', 'bca1'], dtype='<U5')