Making it easy to write async iterators in Python 3.5

interpreters module in python which is backported from the future

Backports of new features in Python's weakref module

Backport of new features in Python's os module

A backport of the Python 3.6 inspect module to Python 2.7-3.5

A backport of Python 3.11+ http.HTTPMethod enum for Python 3.7+

backports.range class from Python 3.3

Backported version of fs.readFileSync, fs.writeFileSync, and fs.appendFileSync which accept file descriptor arguments for synchronously reading and writing to open file descriptors.