flake8 errors when doing docker-compose up

[GaryCarneiro]

$ cd ~/lemur
$ docker-compose up

<truncated>
test_1      | [08:28:37] Starting 'package'...
test_1      | [08:28:37] Finished 'package' after 71 μs
test_1      |
test_1      | --> Linting Python files
test_1      | PYFLAKES_NODOCTEST=1 flake8 lemur
test_1      | lemur/plugins/lemur_acme/plugin.py:53:74: E999 SyntaxError: invalid syntax
test_1      | lemur/plugins/lemur_verisign/plugin.py:210:70: E999 SyntaxError: invalid syntax
test_1      | Makefile:93: recipe for target 'lint-python' failed
test_1      | make: *** [lint-python] Error 1```

[GaryCarneiro]

Flake8 on the code outside the container works

~/lemur$ PYFLAKES_NODOCTEST=1 flake8 lemur  ; echo $?
0

[hosssha]

Thank you for reporting this issue. We don't use docker and docker support is provided by the community. Marking this issue as help-wanted.