Comment 9 for bug 1453996

Ok, that's how to reproduce it:
1. git clone https://opendev.org/openstack/networking-calico
2. Add constraints.txt file with content:
git+file:///home/user/networking-calico@79bdf4995d102833d23479180350216fc59e4b94#egg=networking_calico&gitname=networking-calico&projectgroup=neutron_all
where /home/user/networking-calico is path to the cloned repo
3. Add requirements.txt with "networking-calico" in it
4. Run pip wheel --timeout 120 --wheel-dir /tmp/wheel-output --constraint constraints.txt --requirement requirements.txt