Originally reported by: Daniel Hahler (BitBucket: blueyed, GitHub: blueyed)

I have been running into an issue where virtualenv's fix_local_scheme (https://github.com/pypa/virtualenv/blob/develop/virtualenv.py#L1532-1550) creates a local folder full of symlinks to all files in the current directory for virtualenv ..
(virtualenv . is used by pytest_django, and I have seen it being used elsewhere already).

While this is more a problem with virtualenv (reported at pypa/virtualenv#617) and pytest_django (reported at pytest-dev/pytest-django#102), it would be nice if pytest could be more forgiving and only emit a warning, potentially pointing out that it is the same (symlinked) file?

(fix_local_scheme only applies to a Python installation with sysconfig._get_default_scheme() == 'posix_local', which is the case for Ubuntu.
The default scheme for a custom installation of 3.4.0 is 'posix_prefix')

• Bitbucket: https://bitbucket.org/pytest-dev/pytest/issue/526