the package python3-polib fails the test "test_save_as_mofile" on s390x. This
might be a endianess error, since s390x is big endian. The logfile shows this:

[   67s] FAIL: Test for the POFile.save_as_mofile() method.
[   67s] ----------------------------------------------------------------------
[   67s] Traceback (most recent call last):
[   67s]   File "/home/abuild/rpmbuild/BUILD/polib-1.0.8/tests/tests.py", line
567, in test_save_as_mofile
[   67s]     self.assertEqual(s1, s2)
[   67s] AssertionError: b'\x95\x04\x12\xde\x00\x00\x00\x00\x00\x00\x0[87488
chars]\x00' != b'\xde\x12\x04\x95\x00\x00\x00\x00\xdd\x02\x0[87488 chars]\x00'

This has been built against openSUSE:Factory:zSystems.