mitmproxy/test/conftest.py

import os
import pytest

pytest_plugins = ('test.full_coverage_plugin',)

skip_windows = pytest.mark.skipif(
    os.name == "nt",
    reason='Skipping due to Windows'
)

skip_not_windows = pytest.mark.skipif(
    os.name != "nt",
    reason='Skipping due to not Windows'
)

skip_appveyor = pytest.mark.skipif(
    "APPVEYOR" in os.environ,
    reason='Skipping due to Appveyor'
)