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strings.upper(a)
Return an array with the elements converted to uppercase.
Calls
element-wise.
For 8-bit strings, this method is locale-dependent.
Parameters:aarray-like, with StringDType, bytes_, or str_ dtypeInput array.
Returns:outndarrayOutput array of StringDType, bytes_ or str_ dtype, depending on input types
Examples
>>> importnumpyasnp>>> c=np.array(['a1b c','1bca','bca1']);carray(['a1b c', '1bca', 'bca1'], dtype='<U5')>>> np.strings.upper(c)array(['A1B C', '1BCA', 'BCA1'], dtype='<U5')