so we don't need to use virtualenv python package for creating a
virtualenv, the "venv" module in Python3 would suffice.
see also https://docs.python.org/3/library/venv.html
Signed-off-by: Kefu Chai <kchai@redhat.com>
There were a couple of problems found by flake8 in the qa/
directory (most of them fixed now). Enabling flake8 during the usual
check runs hopefully avoids adding new issues in the future.
Signed-off-by: Thomas Bechtold <tbechtold@suse.com>