[server] Do not use logilab.common.date.strptime in sqlutils This function is aliased to datetime.datetime.strptime() and exists only for compatibility with Python <= 2.5 which we no longer support.

[dataimport/test] Ignore flake8 error E741 in test_pgstore.py This error is about "l" being an ambiguous variable name. Here, it's arguably acceptable.

[test] Avoid ambiguous variable name "l" in unittest_req.py This is an error (E741) from flake8 3.5.