functional tests fail due to leftover pyc files

[Alex Meade]

Unlike in nova, glance does not clean up *.pyc files that are left over. This causes previous errors such as syntax errors to remain in the pyc files and cause errors with the functional tests.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/8700

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/8700
Committed: http://github.com/openstack/glance/commit/0c0fd6acaaa39fd113f96f7e65cd1eb61f49bf26
Submitter: Jenkins
Branch: master

commit 0c0fd6acaaa39fd113f96f7e65cd1eb61f49bf26
Author: Alex Meade <email address hidden>
Date: Tue Jun 19 12:07:12 2012 -0400

    Clean up .pyc files before running tests.

    Fixes bug 1015181

    Change-Id: I5628de56464f882f804522c66d9ffbe35a3b21e1

[Alex Meade (alex-meade)]

NOTE: This bug does not apply when using tox

Also, it appears to be caused by having corrupt .pyc files, which could result from having syntax errors and then switch branches where there are no long syntax errors but the pyc has not been cleaned.