For each element in a, return a copy of the string with all
occurrences of substring old replaced by new.
Calls str.replace element-wise.
- Parameters
- aarray_like of
str or unicode
- old, new
str or unicode
- count
int, optional If the optional argument count is given, only the first
count occurrences are replaced.
- Returns
- out
ndarray Output array of str or unicode, depending on input type