backports.os This package provides backports of new features in Python's os module under the backports namespace. Supported Python versions CPython: 2.7, 3.4, 3.5, 3.6 PyPy, PyPy3 Backported functionality os.fsencode (new in Python 3.2) os.fsdecode (new in Python 3.2) Contributing See HACKING.rst.