strings.replace(a, old, new, count=-1)
For each element in a, return a copy of the string with occurrences of substring old replaced by new.
Parameters:aarray_like, with bytes_ or str_ dtypeold, newarray_like, with bytes_ or str_ dtypecountarray_like, with int_ dtypeIf the optional argument count is given, only the first count occurrences are replaced.
Returns:outndarrayOutput array of StringDType, bytes_ or str_ dtype, depending on input types
Examples
>>> importnumpyasnp>>> a=np.array(["That is a mango","Monkeys eat mangos"])>>> np.strings.replace(a,'mango','banana')array(['That is a banana', 'Monkeys eat bananas'], dtype='<U19')>>> a=np.array(["The dish is fresh","This is it"])>>> np.strings.replace(a,'is','was')array(['The dwash was fresh', 'Thwas was it'], dtype='<U19')