(_virtualenv) Savils-MacBook:auction-keeper savil$ ./test.sh
unit-testing: Pulling from makerdao/testchain-pymaker
Digest: sha256:ceb56f43945c0554079a05f15e3ac76020055e9e8f87f4da4d6505b089da8207
Status: Image is up to date for makerdao/testchain-pymaker:unit-testing
docker.io/makerdao/testchain-pymaker:unit-testing
~/code/makerdao/auction-keeper/lib/pymaker ~/code/makerdao/auction-keeper
Creating network "pymaker_default" with the default driver
Creating parity-pymaker-test ... done
~/code/makerdao/auction-keeper
Traceback (most recent call last):
  File "/Users/savil/code/makerdao/auction-keeper/_virtualenv/bin/py.test", line 6, in <module>
    from pytest import main
  1 codecov == 2.0.9
  File "/Users/savil/code/makerdao/auction-keeper/_virtualenv/lib/python3.7/site-packages/pytest.py", line 13, in <module>
    from _pytest.fixtures import fixture, yield_fixture
  File "/Users/savil/code/makerdao/auction-keeper/_virtualenv/lib/python3.7/site-packages/_pytest/fixtures.py", line 839, in <module>
    class FixtureFunctionMarker(object):
  File "/Users/savil/code/makerdao/auction-keeper/_virtualenv/lib/python3.7/site-packages/_pytest/fixtures.py", line 841, in FixtureFunctionMarker
    params = attr.ib(convert=attr.converters.optional(tuple))
TypeError: attrib() got an unexpected keyword argument 'convert'
Stopping container
~/code/makerdao/auction-keeper/lib/pymaker ~/code/makerdao/auction-keeper
Stopping parity-pymaker-test ... done
Removing parity-pymaker-test ... done
Removing network pymaker_default
~/code/makerdao/auction-keeper