1 files changed, 65 insertions, 0 deletions
diff --git a/sources/shiboken6/shibokenmodule/files.dir/shibokensupport/signature/importhandler.py b/sources/shiboken6/shibokenmodule/files.dir/shibokensupport/signature/importhandler.py
new file mode 100644
index 000000000..bae264294
--- /dev/null
+++ b/sources/shiboken6/shibokenmodule/files.dir/shibokensupport/signature/importhandler.py
@@ -0,0 +1,65 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+"""
+importhandler.py
+
+This module handles special actions after the import of PySide modules.
+The reason for this was the wish to replace some deprecated functions
+by a Python implementation that gives a warning.
+
+It provides a framework to safely call functions outside of files.dir,
+because the implementation of deprecated functions should be visible
+to the users (in the hope they don't use it any longer <wink>).
+
+As a first approach, the function finish_import redirects to
+PySide6/support/deprecated.py . There can come other extensions as well.
+"""
+
+try:
+    from PySide6.support import deprecated
+    have_deprecated = True
+except ImportError:
+    have_deprecated = False
+
+
+# called by loader.py from signature.cpp
+def finish_import(module):
+    if have_deprecated and module.__name__.startswith("PySide6."):
+        try:
+            name = "fix_for_" + module.__name__.split(".")[1]
+            func = getattr(deprecated, name, None)
+            if func:
+                func(module)
+        except Exception as e:
+            name = e.__class__.__qualname__
+            print(72 * "*")
+            print("Error in deprecated.py, ignored:")
+            print(f"    {name}: {e}")
+
+
+"""
+A note for people who might think this could be written in pure Python:
+
+Sure, by an explicit import of the modules to patch, this is no problem.
+But in the general case, a module should only be imported on user
+request and not because we want to patch it. So I started over.
+
+I then tried to do it on demand by redirection of the __import__ function.
+Things worked quite nicely as it seemed, but at second view this solution
+was much less appealing.
+
+Reason:
+If someone executes as the first PySide statement
+
+    from PySide6 import QtGui
+
+then this import is already running. We can see the other imports like the
+diverse initializations and QtCore, because it is triggered by import of
+QtGui. But the QtGui import can not be seen at all!
+
+With a lot of effort, sys.setprofile() and stack inspection with the inspect
+module, it is *perhaps* possible to solve that. I tried for a day and then
+gave up, since the solution is anyway not too nice when __import__ must
+be overridden.
+"""