After upgrading from 1.517 to 1.519 Shining Panda virtual env jobs don't run.

Error was:

/usr/bin/python2.7 file:/var/lib/jenkins/plugins/shiningpanda/WEB-INF/lib/classes.jar!/jenkins/plugins/shiningpanda/workspace/virtualenv.py --distribute /var/lib/jenkins/shiningpanda/jobs/1cfa68f5/virtualenvs/d41d8cd9
/usr/bin/python2.7: can't open file 'file:/var/lib/jenkins/plugins/shiningpanda/WEB-INF/lib/classes.jar!/jenkins/plugins/shiningpanda/workspace/virtualenv.py': [Errno 2] No such file or directory

Fixed by downgrading to 1.517.

In 1.517 the same output looks like:

/usr/bin/python2.7 /var/lib/jenkins/plugins/shiningpanda/WEB-INF/classes/jenkins/plugins/shiningpanda/workspace/virtualenv.py --distribute /var/lib/jenkins/shiningpanda/jobs/1cfa68f5/virtualenvs/d41d8cd9