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numpy.core.defchararray.center
numpy.core.defchararray.center(a, width, fillchar=' ')[source]- 
    
Return a copy of
awith its elements centered in a string of lengthwidth.Calls
str.centerelement-wise.Parameters: - 
           
a : array_like of str or unicode - 
           
width : int - 
           
The length of the resulting strings
 - 
           
fillchar : str or unicode, optional - 
           
The padding character to use (default is space).
 
Returns: - 
           
out : ndarray - 
           
Output array of str or unicode, depending on input types
 
See also
 - 
           
 
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 https://docs.scipy.org/doc/numpy-1.16.1/reference/generated/numpy.core.defchararray.center.html