pathlib2.py 文件源码

def _try_except_permissionerror_iter(try_iter, except_iter):
    if sys.version_info >= (3, 3):
        try:
            for x in try_iter():
                yield x
        except PermissionError as exc:
            for x in except_iter(exc):
                yield x
    else:
        try:
            for x in try_iter():
                yield x
        except EnvironmentError as exc:
            if exc.errno not in (EPERM, EACCES):
                raise
            else:
                for x in except_iter(exc):
                    yield x