parameters: (a, sub, start=0, end=None)
return_statement: return _vec_string(
          a, integer, 'find', [sub, start] + _clean_args(end))
docstring: For each element, return the lowest index in the string where
      substring `sub` is found.
  
      Calls `str.find` element-wise.
  
      For each element, return the lowest index in the string where
      substring `sub` is found, such that `sub` is contained in the
      range [`start`, `end`].
  
      Parameters
      ----------
      a : array_like of str or unicode
  
      sub : str or unicode
  
      start, end : int, optional
          Optional arguments `start` and `end` are interpreted as in
          slice notation.
  
      Returns
      -------
      out : ndarray or int
          Output array of ints.  Returns -1 if `sub` is not found.
  
      See also
      --------
      str.find
docstring_summary: For each element, return the lowest index in the string where
      substring `sub` is found.
docstring_tokens: For each element return the lowest index in the string where substring sub is found .
function: def find(a, sub, start=0, end=None):
      """
      For each element, return the lowest index in the string where
      substring `sub` is found.
  
      Calls `str.find` element-wise.
  
      For each element, return the lowest index in the string where
      substring `sub` is found, such that `sub` is contained in the
      range [`start`, `end`].
  
      Parameters
      ----------
      a : array_like of str or unicode
  
      sub : str or unicode
  
      start, end : int, optional
          Optional arguments `start` and `end` are interpreted as in
          slice notation.
  
      Returns
      -------
      out : ndarray or int
          Output array of ints.  Returns -1 if `sub` is not found.
  
      See also
      --------
      str.find
  
      """
      return _vec_string(
          a, integer, 'find', [sub, start] + _clean_args(end))
function_tokens: def find ( a , sub , start = 0 , end = None ) : return _vec_string ( a , integer , 'find' , [ sub , start ] + _clean_args ( end ) )