pylint/checkers/newstyle.py
def visit_functiondef(self, node):
        """check use of super"""
        # ignore actual functions or method within a new style class
        if not node.is_method():
            return
        klass = node.parent.frame()
        for stmt in node.nodes_of_class(astroid.Call):
            if node_frame_class(stmt) != node_frame_class(node):
                # Don't look down in other scopes.
                continue

            expr = stmt.func
            if not isinstance(expr, astroid.Attribute):
                continue

            call = expr.expr
            # skip the test if using super
            if not (
                isinstance(call, astroid.Call)
                and isinstance(call.func, astroid.Name)
                and call.func.name == "super"
            ):
                continue

            if not klass.newstyle and has_known_bases(klass):
                # super should not be used on an old style class
                continue
            else:
                # super first arg should be the class
                if not call.args:
                    if sys.version_info[0] == 3:
                        # unless Python 3
                        continue
                    else:
                        self.add_message("missing-super-argument", node=call)
                        continue

                # calling super(type(self), self) can lead to recursion loop
                # in derived classes
                arg0 = call.args[0]
                if (
                    isinstance(arg0, astroid.Call)
                    and isinstance(arg0.func, astroid.Name)
                    and arg0.func.name == "type"
                ):
                    self.add_message("bad-super-call", node=call, args=("type",))
                    continue

                # calling super(self.__class__, self) can lead to recursion loop
                # in derived classes
                if (
                    len(call.args) >= 2
                    and isinstance(call.args[1], astroid.Name)
                    and call.args[1].name == "self"
                    and isinstance(arg0, astroid.Attribute)
                    and arg0.attrname == "__class__"
                ):
                    self.add_message(
                        "bad-super-call", node=call, args=("self.__class__",)
                    )
                    continue

                try:
                    supcls = call.args and next(call.args[0].infer(), None)
                except astroid.InferenceError:
                    continue

                if klass is not supcls:
                    name = None
                    # if supcls is not Uninferable, then supcls was infered
                    # and use its name. Otherwise, try to look
                    # for call.args[0].name
                    if supcls:
                        name = supcls.name
                    elif call.args and hasattr(call.args[0], "name"):
                        name = call.args[0].name
                    if name:
                        self.add_message("bad-super-call", node=call, args=(name,))
def visit_functiondef(self, node):
        # ignore actual functions or method within a new style class
        if not node.is_method():
            return
        klass = node.parent.frame()
        for stmt in node.nodes_of_class(astroid.Call):
            if node_frame_class(stmt) != node_frame_class(node):
                # Don't look down in other scopes.
                continue

            expr = stmt.func
            if not isinstance(expr, astroid.Attribute):
                continue

            call = expr.expr
            # skip the test if using super
            if not (
                isinstance(call, astroid.Call)
                and isinstance(call.func, astroid.Name)
                and call.func.name == "super"
            ):
                continue

            if not klass.newstyle and has_known_bases(klass):
                # super should not be used on an old style class
                continue
            else:
                # super first arg should be the class
                if not call.args:
                    if sys.version_info[0] == 3:
                        # unless Python 3
                        continue
                    else:
                        self.add_message("missing-super-argument", node=call)
                        continue

                # calling super(type(self), self) can lead to recursion loop
                # in derived classes
                arg0 = call.args[0]
                if (
                    isinstance(arg0, astroid.Call)
                    and isinstance(arg0.func, astroid.Name)
                    and arg0.func.name == "type"
                ):
                    self.add_message("bad-super-call", node=call, args=("type",))
                    continue

                # calling super(self.__class__, self) can lead to recursion loop
                # in derived classes
                if (
                    len(call.args) >= 2
                    and isinstance(call.args[1], astroid.Name)
                    and call.args[1].name == "self"
                    and isinstance(arg0, astroid.Attribute)
                    and arg0.attrname == "__class__"
                ):
                    self.add_message(
                        "bad-super-call", node=call, args=("self.__class__",)
                    )
                    continue

                try:
                    supcls = call.args and next(call.args[0].infer(), None)
                except astroid.InferenceError:
                    continue

                if klass is not supcls:
                    name = None
                    # if supcls is not Uninferable, then supcls was infered
                    # and use its name. Otherwise, try to look
                    # for call.args[0].name
                    if supcls:
                        name = supcls.name
                    elif call.args and hasattr(call.args[0], "name"):
                        name = call.args[0].name
                    if name:
                        self.add_message("bad-super-call", node=call, args=(name,))
def visit_functiondef ( self , node ) : # ignore actual functions or method within a new style class if not node . is_method ( ) : return klass = node . parent . frame ( ) for stmt in node . nodes_of_class ( astroid . Call ) : if node_frame_class ( stmt ) != node_frame_class ( node ) : # Don't look down in other scopes. continue expr = stmt . func if not isinstance ( expr , astroid . Attribute ) : continue call = expr . expr # skip the test if using super if not ( isinstance ( call , astroid . Call ) and isinstance ( call . func , astroid . Name ) and call . func . name == "super" ) : continue if not klass . newstyle and has_known_bases ( klass ) : # super should not be used on an old style class continue else : # super first arg should be the class if not call . args : if sys . version_info [ 0 ] == 3 : # unless Python 3 continue else : self . add_message ( "missing-super-argument" , node = call ) continue # calling super(type(self), self) can lead to recursion loop # in derived classes arg0 = call . args [ 0 ] if ( isinstance ( arg0 , astroid . Call ) and isinstance ( arg0 . func , astroid . Name ) and arg0 . func . name == "type" ) : self . add_message ( "bad-super-call" , node = call , args = ( "type" , ) ) continue # calling super(self.__class__, self) can lead to recursion loop # in derived classes if ( len ( call . args ) >= 2 and isinstance ( call . args [ 1 ] , astroid . Name ) and call . args [ 1 ] . name == "self" and isinstance ( arg0 , astroid . Attribute ) and arg0 . attrname == "__class__" ) : self . add_message ( "bad-super-call" , node = call , args = ( "self.__class__" , ) ) continue try : supcls = call . args and next ( call . args [ 0 ] . infer ( ) , None ) except astroid . InferenceError : continue if klass is not supcls : name = None # if supcls is not Uninferable, then supcls was infered # and use its name. Otherwise, try to look # for call.args[0].name if supcls : name = supcls . name elif call . args and hasattr ( call . args [ 0 ] , "name" ) : name = call . args [ 0 ] . name if name : self . add_message ( "bad-super-call" , node = call , args = ( name , ) )
check use of super
check use of super