False-positive warning about assertion rewrite

[nicoddemus]

Consider:

# contents of conftest.py
pytest_plugins = 'plugin1'

# contents of test_foo.py
pytest_plugins = 'plugin1'

def test():
   pass

# plugin1.py is an empty file

pytest-3.0.3 provides this warning:

WP1 None Modules are already imported so can not be re-written: plugin1

But this is a false positive; what happens is that the code which verifies that a module needs to be rewritten but is already imported doesn't remember that the file was already rewritten on import.

[RonnyPfannschmidt]

this is a duplicate ^^

[RonnyPfannschmidt]

#1840

[nicoddemus]

Oh right. Do you mind if we close the other one? This one contains more information. 😁