See patches from
https://build.opensuse.org/package/show/isv:perlur:epel/python-urllib2_kerberos
(or https://src.fedoraproject.org/rpms/python-urllib2_kerberos, I guess)

# From https://bitbucket.org/tolsen/urllib2_kerberos/issue/1/
Patch0:         multiple-auth-headers.patch
# From https://bitbucket.org/tolsen/urllib2_kerberos/pull-request/2/
# UNUSED breaks debugging ... RHBZ #1185370
Patch1:         allow_client_apps_to_configure_loggers.patch
# From https://github.com/mcepl/urllib2_kerberos/commit/7b52c4c749
# also https://bugzilla.redhat.com/show_bug.cgi?id=1065576
Patch2:         dont-panick-if-we-succeed.patch
# From https://bugzilla.redhat.com/show_bug.cgi?id=578711
Patch3:         port-to-python-2.4.patch