class_docstr: Extension of QPointF which adds a few missing methods.
class_docstr_tok: ["Extension","of","QPointF","which","adds","a","few","missing","methods","."]
code: def __sub__(self, a):
      return self._math_("__sub__", a)
  
imports: from math import atan2, degrees, hypot
  from .Qt import QtCore
label_desc: Use image node_id 10 for calling the Point obj's underlying member method code with example usage: obj.__sub__(a) and returns: self