diff --git a/bpo34990-2038-problem-compileall.patch b/bpo34990-2038-problem-compileall.patch
new file mode 100644
index 0000000..68d76e3
--- /dev/null
+++ b/bpo34990-2038-problem-compileall.patch
@@ -0,0 +1,142 @@
+From 9d3b6b2472f7c7ef841e652825de652bc8af85d7 Mon Sep 17 00:00:00 2001
+From: "Miss Islington (bot)"
+ <31488909+miss-islington@users.noreply.github.com>
+Date: Tue, 24 Aug 2021 08:07:31 -0700
+Subject: [PATCH] [3.9] bpo-34990: Treat the pyc header's mtime in compileall
+ as an unsigned int (GH-19708)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+(cherry picked from commit bb21e28fd08f894ceff2405544a2f257d42b1354)
+
+Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
+Co-authored-by: Stéphane Wirtel <stephane@wirtel.be>
+
+ported to python-2.7 by Bernhard M. Wiedemann <bwiedemann suse de>
+
+diff --git a/Lib/compileall.py b/Lib/compileall.py
+index 5cfa8be..193147e 100644
+--- a/Lib/compileall.py
++++ b/Lib/compileall.py
+@@ -85,7 +85,7 @@ def compile_file(fullname, ddir=None, force=0, rx=None, quiet=0):
+             if not force:
+                 try:
+                     mtime = int(os.stat(fullname).st_mtime)
+-                    expect = struct.pack('<4sl', imp.get_magic(), mtime)
++                    expect = struct.pack('<4sL', imp.get_magic(), mtime & 0xFFFFFFFF)
+                     cfile = fullname + (__debug__ and 'c' or 'o')
+                     with open(cfile, 'rb') as chandle:
+                         actual = chandle.read(8)
+diff --git a/Lib/test/test_compileall.py b/Lib/test/test_compileall.py
+index d3a26db..0907f59 100644
+--- a/Lib/test/test_compileall.py
++++ b/Lib/test/test_compileall.py
+@@ -28,7 +28,7 @@ class CompileallTests(unittest.TestCase):
+         with open(self.bc_path, 'rb') as file:
+             data = file.read(8)
+         mtime = int(os.stat(self.source_path).st_mtime)
+-        compare = struct.pack('<4sl', imp.get_magic(), mtime)
++        compare = struct.pack('<4sL', imp.get_magic(), mtime & 0xFFFFFFFF)
+         return data, compare
+ 
+     @unittest.skipUnless(hasattr(os, 'stat'), 'test needs os.stat()')
+@@ -48,7 +48,7 @@ class CompileallTests(unittest.TestCase):
+ 
+     def test_mtime(self):
+         # Test a change in mtime leads to a new .pyc.
+-        self.recreation_check(struct.pack('<4sl', imp.get_magic(), 1))
++        self.recreation_check(struct.pack('<4sL', imp.get_magic(), 1))
+ 
+     def test_magic_number(self):
+         # Test a change in mtime leads to a new .pyc.
+diff --git a/Lib/test/test_zipimport.py b/Lib/test/test_zipimport.py
+index a66738a..e333582 100644
+--- a/Lib/test/test_zipimport.py
++++ b/Lib/test/test_zipimport.py
+@@ -27,13 +27,7 @@ raise_src = 'def do_raise(): raise TypeError\n'
+ 
+ def make_pyc(co, mtime):
+     data = marshal.dumps(co)
+-    if type(mtime) is type(0.0):
+-        # Mac mtimes need a bit of special casing
+-        if mtime < 0x7fffffff:
+-            mtime = int(mtime)
+-        else:
+-            mtime = int(-0x100000000L + long(mtime))
+-    pyc = imp.get_magic() + struct.pack("<i", int(mtime)) + data
++    pyc = imp.get_magic() + struct.pack("<L", int(mtime) & 0xFFFFFFFF) + data
+     return pyc
+ 
+ def module_path_to_dotted_name(path):
+@@ -184,6 +178,14 @@ class UncompressedZipImportTestCase(ImportHooksBaseTestCase):
+                  TESTMOD + pyc_ext: (NOW, badtime_pyc)}
+         self.doTest(".py", files, TESTMOD)
+ 
++    def test2038MTime(self):
++        # Make sure we can handle mtimes larger than what a 32-bit signed number
++        # can hold.
++        twenty_thirty_eight_pyc = make_pyc(test_co, 2**32 - 1)
++        files = {TESTMOD + ".py": (NOW, test_src),
++                 TESTMOD + pyc_ext: (NOW, twenty_thirty_eight_pyc)}
++        self.doTest(".py", files, TESTMOD)
++
+     def testPackage(self):
+         packdir = TESTPACK + os.sep
+         files = {packdir + "__init__" + pyc_ext: (NOW, test_pyc),
+
+==========
+
+Author: Bernhard M. Wiedemann <bwiedemann suse de>
+Date: 2022-09-13
+
+More y2038 fixes that are only needed for python2.7
+
+diff --git a/Lib/compiler/pycodegen.py b/Lib/compiler/pycodegen.py
+index 6515945..21d52bb 100644
+--- a/Lib/compiler/pycodegen.py
++++ b/Lib/compiler/pycodegen.py
+@@ -128,7 +128,7 @@ class Module(AbstractCompileMode):
+         # to indicate the type of the value.  simplest way to get the
+         # same effect is to call marshal and then skip the code.
+         mtime = os.path.getmtime(self.filename)
+-        mtime = struct.pack('<i', mtime)
++        mtime = struct.pack('<L', mtime & 0xFFFFFFFF)
+         return self.MAGIC + mtime
+ 
+ class LocalNameFinder:
+diff --git a/Lib/test/test_gzip.py b/Lib/test/test_gzip.py
+index cdb1af5..6344ef2 100644
+--- a/Lib/test/test_gzip.py
++++ b/Lib/test/test_gzip.py
+@@ -265,7 +265,7 @@ class TestGzip(unittest.TestCase):
+             self.assertEqual(flagsByte, '\x08') # only the FNAME flag is set
+ 
+             mtimeBytes = fRead.read(4)
+-            self.assertEqual(mtimeBytes, struct.pack('<i', mtime)) # little-endian
++            self.assertEqual(mtimeBytes, struct.pack('<L', mtime & 0xFFFFFFFF)) # little-endian
+ 
+             xflByte = fRead.read(1)
+             self.assertEqual(xflByte, '\x02') # maximum compression
+diff --git a/Python/import.c b/Python/import.c
+index b79354b..3efd17f 100644
+--- a/Python/import.c
++++ b/Python/import.c
+@@ -810,7 +810,7 @@ check_compiled_module(char *pathname, time_t mtime, char *cpathname)
+ {
+     FILE *fp;
+     long magic;
+-    long pyc_mtime;
++    unsigned long pyc_mtime;
+ 
+     fp = fopen(cpathname, "rb");
+     if (fp == NULL)
+@@ -823,7 +823,7 @@ check_compiled_module(char *pathname, time_t mtime, char *cpathname)
+         return NULL;
+     }
+     pyc_mtime = PyMarshal_ReadLongFromFile(fp);
+-    if (pyc_mtime != mtime) {
++    if ((pyc_mtime&0xFFFFFFFF) != (((unsigned long)mtime)&0xFFFFFFFF)) {
+         if (Py_VerboseFlag)
+             PySys_WriteStderr("# %s has bad mtime\n", cpathname);
+         fclose(fp);
diff --git a/python-base.changes b/python-base.changes
index 8f30fd1..12d527b 100644
--- a/python-base.changes
+++ b/python-base.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Tue Sep 13 04:06:02 UTC 2022 - Bernhard Wiedemann <bwiedemann@suse.com>
+
+- Add bpo34990-2038-problem-compileall.patch making compileall.py
+  compliant with year 2038 (bsc#1202666, gh#python/cpython#79171),
+  backport of fix to Python 2.7.
+
 -------------------------------------------------------------------
 Wed Sep  7 04:46:44 UTC 2022 - Steve Kowalik <steven.kowalik@suse.com>
 
diff --git a/python-base.spec b/python-base.spec
index 3fa676f..1e4ca32 100644
--- a/python-base.spec
+++ b/python-base.spec
@@ -133,6 +133,7 @@ Patch70:        CVE-2015-20107-mailcap-unsafe-filenames.patch
 # PATCH-FIX-UPSTREAM CVE-2021-28861 bsc#1202624
 # Coerce // to / in Lib/BaseHTTPServer.py
 Patch71:        CVE-2021-28861-double-slash-path.patch
+Patch72:        bpo34990-2038-problem-compileall.patch
 # COMMON-PATCH-END
 %define         python_version    %(echo %{tarversion} | head -c 3)
 BuildRequires:  automake
@@ -270,6 +271,7 @@ other applications.
 %patch69 -p1
 %patch70 -p1
 %patch71 -p1
+%patch72 -p1
 
 # For patch 66
 cp -v %{SOURCE66} Lib/test/recursion.tar
diff --git a/python-doc.changes b/python-doc.changes
index 8f30fd1..12d527b 100644
--- a/python-doc.changes
+++ b/python-doc.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Tue Sep 13 04:06:02 UTC 2022 - Bernhard Wiedemann <bwiedemann@suse.com>
+
+- Add bpo34990-2038-problem-compileall.patch making compileall.py
+  compliant with year 2038 (bsc#1202666, gh#python/cpython#79171),
+  backport of fix to Python 2.7.
+
 -------------------------------------------------------------------
 Wed Sep  7 04:46:44 UTC 2022 - Steve Kowalik <steven.kowalik@suse.com>
 
diff --git a/python-doc.spec b/python-doc.spec
index 0ac768b..6b67e16 100644
--- a/python-doc.spec
+++ b/python-doc.spec
@@ -132,6 +132,7 @@ Patch70:        CVE-2015-20107-mailcap-unsafe-filenames.patch
 # PATCH-FIX-UPSTREAM CVE-2021-28861 bsc#1202624
 # Coerce // to / in Lib/BaseHTTPServer.py
 Patch71:        CVE-2021-28861-double-slash-path.patch
+Patch72:        bpo34990-2038-problem-compileall.patch
 # COMMON-PATCH-END
 Provides:       pyth_doc = %{version}
 Provides:       pyth_ps = %{version}
@@ -207,6 +208,7 @@ Python, and Macintosh Module Reference in PDF format.
 %patch69 -p1
 %patch70 -p1
 %patch71 -p1
+%patch72 -p1
 
 # For patch 66
 cp -v %{SOURCE66} Lib/test/recursion.tar
diff --git a/python.changes b/python.changes
index 8f30fd1..12d527b 100644
--- a/python.changes
+++ b/python.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Tue Sep 13 04:06:02 UTC 2022 - Bernhard Wiedemann <bwiedemann@suse.com>
+
+- Add bpo34990-2038-problem-compileall.patch making compileall.py
+  compliant with year 2038 (bsc#1202666, gh#python/cpython#79171),
+  backport of fix to Python 2.7.
+
 -------------------------------------------------------------------
 Wed Sep  7 04:46:44 UTC 2022 - Steve Kowalik <steven.kowalik@suse.com>
 
diff --git a/python.spec b/python.spec
index eb4d3ee..d4b9228 100644
--- a/python.spec
+++ b/python.spec
@@ -132,6 +132,7 @@ Patch70:        CVE-2015-20107-mailcap-unsafe-filenames.patch
 # PATCH-FIX-UPSTREAM CVE-2021-28861 bsc#1202624
 # Coerce // to / in Lib/BaseHTTPServer.py
 Patch71:        CVE-2021-28861-double-slash-path.patch
+Patch72:        bpo34990-2038-problem-compileall.patch
 # COMMON-PATCH-END
 BuildRequires:  automake
 BuildRequires:  db-devel
@@ -323,6 +324,7 @@ that rely on earlier non-verification behavior.
 %patch69 -p1
 %patch70 -p1
 %patch71 -p1
+%patch72 -p1
 
 # For patch 66
 cp -v %{SOURCE66} Lib/test/recursion.tar