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# numpy.core.defchararray.upper

`numpy.core.defchararray.``upper`(a)

  Return an array with the elements converted to uppercase.

  Calls str.upper 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

  `str.upper`

  Examples

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