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# numpy.core.defchararray.replace

`numpy.core.defchararray.``replace`(a, old, new, count=None)

  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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