numpy.core.defchararray.lower¶
- numpy.core.defchararray.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: a : array_like, {str, unicode}
Input array.
Returns: out : ndarray, {str, unicode}
Output array of str or unicode, depending on input type
See also
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')