Renamed the report since it's unsafe for sure.

This problem was previously called: Avoid unnecessary and possibly unsafe code from http.client.HTTPConnection.send. 


Imagine that the data parameter from HTTPConnection it's a file like object but it's not iterable, maybe some custom data wrapper.

the if hasattr(data, "read"): True branch will correctly send out the response then unnecessary continue to:

try:
            self.sock.sendall(data)
        except TypeError:
            if isinstance(data, collections.Iterable):
                for d in data:
                    self.sock.sendall(d)
            else:
                raise TypeError("data should be a bytes-like object "
                                "or an iterable, got %r" % type(data))

and crash!