Add patch to fix the import error occurring with Python 3.10

Fix: rhbz#1904379

Signed-off-by: Robert-André Mauchin <zebob.m@gmail.com>

0001-PyModule_AddObject-fix-for-Python-3.10.patch

@@ -0,0 +1,104 @@
+From cf190a3c2f166cf0a7dd004fee4b242ea29bf1f4 Mon Sep 17 00:00:00 2001
+From: Andrew Murray <radarhere@users.noreply.github.com>
+Date: Sat, 9 Jan 2021 11:33:26 +1100
+Subject: [PATCH 2/2] PyModule_AddObject fix for Python 3.10
+
+---
+ src/_imaging.c | 21 +++++++++++++++------
+ src/_webp.c    | 14 ++++++++++----
+ 2 files changed, 25 insertions(+), 10 deletions(-)
+
+diff --git a/src/_imaging.c b/src/_imaging.c
+index a8741f6ad3..01dd22486e 100644
+--- a/src/_imaging.c
++++ b/src/_imaging.c
+@@ -4172,26 +4172,32 @@ setup_module(PyObject* m) {
+   }
+ #endif
+
++    PyObject *have_libjpegturbo;
+ #ifdef LIBJPEG_TURBO_VERSION
+-    PyModule_AddObject(m, "HAVE_LIBJPEGTURBO", Py_True);
++    have_libjpegturbo = Py_True;
+     #define tostr1(a) #a
+     #define tostr(a) tostr1(a)
+     PyDict_SetItemString(d, "libjpeg_turbo_version", PyUnicode_FromString(tostr(LIBJPEG_TURBO_VERSION)));
+     #undef tostr
+     #undef tostr1
+ #else
+-    PyModule_AddObject(m, "HAVE_LIBJPEGTURBO", Py_False);
+-#endif
++    have_libjpegturbo = Py_False;
++ #endif
++    Py_INCREF(have_libjpegturbo);
++    PyModule_AddObject(m, "HAVE_LIBJPEGTURBO", have_libjpegturbo);
+
++    PyObject *have_libimagequant;
+ #ifdef HAVE_LIBIMAGEQUANT
+-    PyModule_AddObject(m, "HAVE_LIBIMAGEQUANT", Py_True);
++    have_libimagequant = Py_True;
+     {
+         extern const char* ImagingImageQuantVersion(void);
+         PyDict_SetItemString(d, "imagequant_version", PyUnicode_FromString(ImagingImageQuantVersion()));
+     }
+ #else
+-    PyModule_AddObject(m, "HAVE_LIBIMAGEQUANT", Py_False);
++    have_libimagequant = Py_False;
+ #endif
++    Py_INCREF(have_libimagequant);
++    PyModule_AddObject(m, "HAVE_LIBIMAGEQUANT", have_libimagequant);
+
+ #ifdef HAVE_LIBZ
+   /* zip encoding strategies */
+@@ -4222,11 +4228,14 @@ setup_module(PyObject* m) {
+   }
+ #endif
+
++    PyObject *have_xcb;
+ #ifdef HAVE_XCB
+-    PyModule_AddObject(m, "HAVE_XCB", Py_True);
++    have_xcb = Py_True;
+ #else
+-    PyModule_AddObject(m, "HAVE_XCB", Py_False);
++    have_xcb = Py_False;
+ #endif
++    Py_INCREF(have_xcb);
++    PyModule_AddObject(m, "HAVE_XCB", have_xcb);
+
+     PyDict_SetItemString(d, "PILLOW_VERSION", PyUnicode_FromString(version));
+
+diff --git a/src/_webp.c b/src/_webp.c
+index c7875fa368..4d51d99dfa 100644
+--- a/src/_webp.c
++++ b/src/_webp.c
+@@ -861,19 +861,25 @@ static PyMethodDef webpMethods[] =
+ };
+
+ void addMuxFlagToModule(PyObject* m) {
++    PyObject *have_webpmux;
+ #ifdef HAVE_WEBPMUX
+-    PyModule_AddObject(m, "HAVE_WEBPMUX", Py_True);
++    have_webpmux = Py_True;
+ #else
+-    PyModule_AddObject(m, "HAVE_WEBPMUX", Py_False);
++    have_webpmux = Py_False;
+ #endif
++    Py_INCREF(have_webpmux);
++    PyModule_AddObject(m, "HAVE_WEBPMUX", have_webpmux);
+ }
+
+ void addAnimFlagToModule(PyObject* m) {
++    PyObject *have_webpanim;
+ #ifdef HAVE_WEBPANIM
+-    PyModule_AddObject(m, "HAVE_WEBPANIM", Py_True);
++    have_webpanim = Py_True;
+ #else
+-    PyModule_AddObject(m, "HAVE_WEBPANIM", Py_False);
++    have_webpanim = Py_False;
+ #endif
++    Py_INCREF(have_webpanim);
++    PyModule_AddObject(m, "HAVE_WEBPANIM", have_webpanim);
+ }
+
+ void addTransparencyFlagToModule(PyObject* m) {
+

python-pillow.spec

@@ -8,7 +8,7 @@
 
 Name:           python-%{srcname}
 Version:        8.1.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Python image processing library
 
 # License: see http://www.pythonware.com/products/pil/license.htm
@@ -20,6 +20,9 @@ Source0:        https://github.com/python-pillow/Pillow/archive/%{version}/Pillo
 Patch0:         python-pillow_spinxwarn.patch
 # Drop sphinx-issues requirement, it's not packaged for Fedora
 Patch1:         python-pillow_sphinx-issues.patch
+# PyModule_AddObject fix for Python 3.10
+# https://github.com/python-pillow/Pillow/pull/5194
+Patch2:		0001-PyModule_AddObject-fix-for-Python-3.10.patch
 
 BuildRequires:  freetype-devel
 BuildRequires:  gcc
@@ -153,7 +156,6 @@ pushd build/%py3_libbuilddir
 PYTHONPATH=$PWD %{__python3} selftest.py
 popd
 
-
 %files -n python3-%{srcname}
 %doc README.md CHANGES.rst
 %license docs/COPYING
@@ -188,6 +190,10 @@ popd
 
 
 %changelog
+* Sat Jan 09 2021 Robert-André Mauchin <zebob.m@gmail.com> - 8.1.0-2
+- Add patch to fix the import error occurring with Python 3.10
+- Fix: rhbz#1904379
+
 * Sun Jan 03 2021 Sandro Mani <manisandro@gmail.com> - 8.1.0-1
 - Update to 8.1.0