httplib2/certs.py | 4 1 + 3 - 0 !
setup.py | 1 0 + 1 - 0 !
tests/test_cacerts_from_env.py | 2 1 + 1 - 0 !
3 files changed, 2 insertions(+), 5 deletions(-)

 use system ca certificates, not the bundled ones

tests/test_http.py | 1 1 + 0 - 0 !
tests/test_other.py | 3 2 + 1 - 0 !
tests/test_proxy.py | 2 2 + 0 - 0 !
3 files changed, 5 insertions(+), 1 deletion(-)

 skip broken autopkgtests

Skip 5 tests, which do not run properly in an isolated autopkgtest
environment

setup.cfg | 4 0 + 4 - 0 !
1 file changed, 4 deletions(-)

 disable pytest-cov

We don't need coverage reports for our use-case. And this avoids us
needing to provide setup.cfg for the test run.