Function temp_dir

Lib/test/support/os_helper.py:503–545

Return a context manager that creates a temporary directory. Arguments: path: the directory to create temporarily. If omitted or None, defaults to creating a temporary directory using tempfile.mkdtemp. quiet: if False (the default), the context manager raises an exception

(path=None, quiet=False)

@contextlib.contextmanager
def temp_dir(path=None, quiet=False):
    """Return a context manager that creates a temporary directory.

    Arguments:

      path: the directory to create temporarily.  If omitted or None,
        defaults to creating a temporary directory using tempfile.mkdtemp.

      quiet: if False (the default), the context manager raises an exception
        on error.  Otherwise, if the path is specified and cannot be
        created, only a warning is issued.

    """
    import tempfile
    dir_created = False
    if path is None:
        path = tempfile.mkdtemp()
        dir_created = True
        path = os.path.realpath(path)
    else:
        try:
            os.mkdir(path)
            dir_created = True
        except OSError as exc:
            if not quiet:
                raise
            logging.getLogger(__name__).warning(
                "tests may fail, unable to create temporary directory %r: %s",
                path,
                exc,
                exc_info=exc,
                stack_info=True,
                stacklevel=3,
            )
    if dir_created:
        pid = os.getpid()
    try:
        yield path
    finally:
        # In case the process forks, let only the parent remove the
        # directory. The child has a different process id. (bpo-30028)
        if dir_created and pid == os.getpid():
            rmtree(path)


@contextlib.contextmanager