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numpy.core.defchararray.chararray.translate
method
chararray.translate(table, deletechars=None)[source]- 
    
For each element in
self, return a copy of the string where all characters occurring in the optional argumentdeletecharsare removed, and the remaining characters have been mapped through the given translation table.See also
char.translate 
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 https://docs.scipy.org/doc/numpy-1.16.1/reference/generated/numpy.core.defchararray.chararray.translate.html