Pylint: no-member with Qt signals using PySide2

[DGalt]

Steps to reproduce

1. Create signal_test.py containing:

from PySide2 import QtWidgets
app = QtWidgets.QApplication()
app.focusChanged.connect(lambda x: None)

1. Run
   pylint .\signal_test.py --extension-pkg-whitelist=PySide2

Current behavior

signal_test.py:5:0: E1101: Instance of 'Signal' has no 'connect' member (no-member)

Expected behavior

No errors

pylint --version output

pylint 2.1.1
astroid 2.0.4
Python 3.7.0 | packaged by conda-forge | (default, Oct  9 2018, 13:13:14) [MSC v.1900 64 bit (AMD64)]

Note that this was addressed for PySide in #1633

[PCManticore]

Thanks for reporting an issue!

[akai10tsuki]

This is more or less related to issue #1633

Until new version is release I patch brain_qt.py and the error is not raised.

``` diff
--- brain/brain_qt.py 2019-01-01 12:08:36.921238400 -0500
+++ brain/brain_qt.1.py 2019-01-01 12:21:51.070181400 -0500
@@ -80,3 +80,8 @@
transform_pyside_signal,
lambda node: node.qname() == "PySide.QtCore.Signal",
)
+MANAGER.register_transform(

• nodes.ClassDef,
• transform_pyside_signal,
• lambda node: node.qname() == "PySide2.QtCore.Signal",
  +)

[akai10tsuki]

This file is found on the astroid module of your python installation.

``` Python
site-packages/astroid/brain/brain_qt.py