numpy.core.defchararray.zfill

numpy.core.defchararray.zfill(a, width) [source]

Return the numeric string left-filled with zeros

Calls str.zfill element-wise.

Parameters:	a : array_like, {str, unicode} Input array. width : int Width of string to left-fill elements in a.
Returns:	out : ndarray, {str, unicode} Output array of str or unicode, depending on input type

See also

str.zfill