backport patch to fix ImportWarning: DynamicImporter.find_spec() not found

174.patch

@@ -0,0 +1,61 @@
+From 3d6cf72cf21fba816744702d342545265e67233f Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Miro=20Hron=C4=8Dok?= <miro@hroncok.cz>
+Date: Tue, 18 May 2021 12:31:51 +0200
+Subject: [PATCH] Implement DynamicImporter.find_spec()
+
+On Python 3.10, the code raised an ImportWarning:
+
+    ImportWarning: DynamicImporter.find_spec() not found; falling back to find_module()
+
+See https://docs.python.org/3.10/whatsnew/3.10.html#deprecated
+
+> Starting in this release, there will be a concerted effort to begin cleaning
+> up old import semantics that were kept for Python 2.7 compatibility.
+> Specifically, find_loader()/find_module() (superseded by find_spec()),
+> load_module() (superseded by exec_module()), module_repr()
+> (which the import system takes care of for you),
+> the __package__ attribute (superseded by __spec__.parent),
+> the __loader__ attribute (superseded by __spec__.loader),
+> and the __cached__ attribute (superseded by __spec__.cached)
+> will slowly be removed (as well as other classes and methods in importlib).
+> ImportWarning and/or DeprecationWarning will be raised as appropriate to help
+> identify code which needs updating during this transition.
+
+Fixes https://gitlab.gnome.org/GNOME/pygobject/-/issues/473
+---
+ gi/importer.py | 15 ++++++++++-----
+ 1 file changed, 10 insertions(+), 5 deletions(-)
+
+diff --git a/gi/importer.py b/gi/importer.py
+index 32967974..63788776 100644
+--- a/gi/importer.py
++++ b/gi/importer.py
+@@ -107,15 +107,20 @@ class DynamicImporter(object):
+     def __init__(self, path):
+         self.path = path
+ 
+-    def find_module(self, fullname, path=None):
++    def _find_module_check(self, fullname):
+         if not fullname.startswith(self.path):
+-            return
++            return False
+ 
+         path, namespace = fullname.rsplit('.', 1)
+-        if path != self.path:
+-            return
++        return path == self.path
++
++    def find_spec(self, fullname, path=None, target=None):
++        if self._find_module_check(fullname):
++            return importlib.util.spec_from_loader(fullname, self)
+ 
+-        return self
++    def find_module(self, fullname, path=None):
++        if self._find_module_check(fullname):
++            return self
+ 
+     def load_module(self, fullname):
+         if fullname in sys.modules:
+-- 
+GitLab
+

pygobject3.spec

@@ -6,9 +6,14 @@
 
 Name:           pygobject3
 Version:        3.40.1
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Python bindings for GObject Introspection
 
+# pygobject3 emits an ImportWarning with Pyuthon 3.10.0b1+
+# This patch fixes this error and can be removed once merged in upstream
+# https://gitlab.gnome.org/GNOME/pygobject/-/merge_requests/174
+Patch174:       174.patch
+
 License:        LGPLv2+ and MIT
 URL:            https://wiki.gnome.org/Projects/PyGObject
 Source0:        https://download.gnome.org/sources/pygobject/3.40/pygobject-%{version}.tar.xz
@@ -85,6 +90,10 @@ This package contains files required to embed PyGObject
 %{_libdir}/pkgconfig/pygobject-3.0.pc
 
 %changelog
+* Thu May 20 2021 Tomas Hrnciar <thrnciar@redhat.com> - 3.40.1-3
+- Backport upstream PR to fix ImportWarning: DynamicImporter.find_spec() not found
+- Fixes: rhbz#1958890
+
 * Wed May 05 2021 Ray Strode <rstrode@redhat.com> - 3.40.1-2
 - Add concurrency fix
   Related: #1957130