Different versions of setuptools seem to produce
different representations of the version specifiers,
so use pkg_resources to parse the values again
and then compare the resulting objects so we
aren't tripped up by rendering differences.
Change-Id: Ic67cc936208dbd96b6d811c6aa284fd87df5b118
Signed-off-by: Doug Hellmann <doug@doughellmann.com>
Closes-Bug: #1758877