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numpy.char.replace

char. replace ( a, old, new, count=None ) [source]

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
a array-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

See also

str.replace

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https://numpy.org/doc/1.22/reference/generated/numpy.char.replace.html