To activate this project's virtualenv, run pipenv shell. Alternatively, run a command inside the virtualenv with pipenv run. $ pipenv run flake8 ./nrm/daemon.py:171:80: E501 line too long (119 > 79 characters) ./nrm/daemon.py:175:80: E501 line too long (142 > 79 characters) ./nrm/daemon.py:175:99: E225 missing whitespace around operator ./nrm/daemon.py:175:113: E231 missing whitespace after ',' ./nrm/daemon.py:175:128: E231 missing whitespace after ',' ERROR: Job failed: exit status 1