numpy.core.defchararray.swapcase — NumPy v1.11 Manual (original) (raw)

numpy.core.defchararray.swapcase(a)[source]

Return element-wise a copy of the string with uppercase characters converted to lowercase and vice versa.

Calls str.swapcase 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

Examples

c=np.array(['a1B c','1b Ca','b Ca1','cA1b'],'S5'); c array(['a1B c', '1b Ca', 'b Ca1', 'cA1b'], dtype='|S5') np.char.swapcase(c) array(['A1b C', '1B cA', 'B cA1', 'Ca1B'], dtype='|S5')