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numpy.core.defchararray.replace
numpy.core.defchararray.replace(a, old, new, count=None)[source]- 
    
For each element in
a, return a copy of the string with all occurrences of substringoldreplaced bynew.Calls
str.replaceelement-wise.Parameters: Returns: - 
           
out : ndarray - 
           
Output array of str or unicode, depending on input type
 
See also
 - 
           
 
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 https://docs.scipy.org/doc/numpy-1.16.1/reference/generated/numpy.core.defchararray.replace.html