tests/sitecustomize.py

formatter: rename {abspath}/{file} to {path}, and drop relative {path} (BC)

Note that {path} in status is either relative-to-cwd or repository-absolute
depending on the command argument and config knob, which can't be reproduced
by using the {path|relpath} filter. The default template is updated to always
use a relative path.

.. bc::

   ``{abspath}`` and ``{file}`` in generic templates are renamed to ``{path}``.
   Any ``{path}`` is a repository-absolute path. Use ``{path|relpath}`` to
   convert it to a filesystem path.

from __future__ import absolute_import
import os

if os.environ.get('COVERAGE_PROCESS_START'):
    try:
        import coverage
        import uuid

        covpath = os.path.join(os.environ['COVERAGE_DIR'],
                               'cov.%s' % uuid.uuid1())
        cov = coverage.coverage(data_file=covpath, auto_data=True)
        cov._warn_no_data = False
        cov._warn_unimported_source = False
        cov.start()
    except ImportError:
        pass