matchy/tests/test.py

import pytest
import sys
from flake8.main.application import Application

# Run flake
app = Application()
ret = app.run(["--max-line-length", "120", "matchy/", "tests/"])
flake_exitcode = app.exit_code()
print(flake_exitcode)

# Run pytest
pytest_exitcode = pytest.main()

# Exit based on the two codes
sys.exit(flake_exitcode + pytest_exitcode)