backlib

Warning

The library is in the pre-alpha stage. Bugs may exist!

Key Features

• Provides backports for the standard library;
• Compatible with Python 3.9+;
• Almost dependency-free.

Getting Started

Installation

The library is available as backlib on PyPI:

pip install backlib

Usage

builtins

For more, see the documentation.

from backlib.py310 import builtins

assert issubclass(builtins.EncodingWarning, Warning)

errno

For more, see the documentation.

from backlib.py311 import errno

assert errno.ENOTCAPABLE == 93

io [SOON]

For more, see the documentation.

from backlib.py311 import io

encoding = io.text_encoding(None)

assert encoding == "utf-8"

json

For more, see the documentation.

from backlib.py310 import json

data = json.loads("{\"backlib\": \"pypi\"}")

assert data == {"backlib": "pypi"}

operator

For more, see the documentation.

from backlib.py311 import operator

value = operator.call(abs, -42)

assert value == 42

os

For more, see the documentation.

from backlib.py312 import os

st = os.stat("pyproject.toml")

assert st.st_birthtime_ns > 0

os.path

For more, see the documentation.

from backlib.py313 import os

assert os.path.isreserved("NUL")

stat

For more, see the documentation.

from backlib.py313 import stat

assert stat.SF_SYNTHETIC == 0xC0000000

tomllib

For more, see the documentation.

from backlib.py311 import tomllib

data = tomllib.loads("\"backlib\" = \"pypi\"")

assert data == {"backlib": "pypi"}

License

MIT License, Copyright (c) 2025 Sergei Y. Bogdanov. See LICENSE file.