cpython
Alternative StdLib for Nim for Python targets
Summary
| Latest Version | Unknown |
|---|---|
| License | MIT |
| CI Status | Failing |
| Downloads | 0 |
| Last Indexed | 2026-07-21 05:25 |
Tags
Installation
nimble install cpython
choosenim install cpython
git clone https://github.com/juancarlospaco/cpython
OS Compatibility
| Platform | Linux | macOS | Windows | FreeBSD | OpenBSD | NetBSD | Android | iOS | WASM | Embedded |
|---|---|---|---|---|---|---|---|---|---|---|
| cpython | ✓ | ✓ | ✓ | - | - | - | - | - | - | - |
Source
| Repository | https://github.com/juancarlospaco/cpython |
|---|---|
| Homepage | https://github.com/juancarlospaco/cpython |
| Registry Source | nimble_official |
README
Alternative StdLib for Nim for Python targets

Documentation
- :heavy_check_mark: atexit :arrow_right: https://juancarlospaco.github.io/cpython/atexit
- :heavy_check_mark: base64 :arrow_right: https://juancarlospaco.github.io/cpython/base64
- :heavy_check_mark: binascii :arrow_right: https://juancarlospaco.github.io/cpython/binascii
- :heavy_check_mark: binhex :arrow_right: https://juancarlospaco.github.io/cpython/binhex
- :heavy_check_mark: builtins :arrow_right: https://juancarlospaco.github.io/cpython/builtins
- :heavy_check_mark: bz2 :arrow_right: https://juancarlospaco.github.io/cpython/bz2
- :heavy_check_mark: cmath :arrow_right: https://juancarlospaco.github.io/cpython/cmath
- :heavy_check_mark: codecs :arrow_right: https://juancarlospaco.github.io/cpython/codecs
- :heavy_check_mark: codeop :arrow_right: https://juancarlospaco.github.io/cpython/codeop
- :heavy_check_mark: colorsys :arrow_right: https://juancarlospaco.github.io/cpython/colorsys
- :heavy_check_mark: compileall :arrow_right: https://juancarlospaco.github.io/cpython/compileall
- :heavy_check_mark: copy :arrow_right: https://juancarlospaco.github.io/cpython/copy
- :heavy_check_mark: crypt :arrow_right: https://juancarlospaco.github.io/cpython/crypt
- :heavy_check_mark: curses :arrow_right: https://juancarlospaco.github.io/cpython/curses
- :heavy_check_mark: decimal :arrow_right: https://juancarlospaco.github.io/cpython/decimal
- :heavy_check_mark: dbd :arrow_right: https://juancarlospaco.github.io/cpython/dbd
- :heavy_check_mark: dis :arrow_right: https://juancarlospaco.github.io/cpython/dis
- :heavy_check_mark: doctest :arrow_right: https://juancarlospaco.github.io/cpython/doctest
- :heavy_check_mark: ensurepip :arrow_right: https://juancarlospaco.github.io/cpython/ensurepip
- :heavy_check_mark: errno :arrow_right: https://juancarlospaco.github.io/cpython/errno
- :heavy_check_mark: faulthandler :arrow_right: https://juancarlospaco.github.io/cpython/faulthandler
- :heavy_check_mark: fcntl :arrow_right: https://juancarlospaco.github.io/cpython/fcntl
- :heavy_check_mark: filecmp :arrow_right: https://juancarlospaco.github.io/cpython/filecmp
- :heavy_check_mark: fnmatch :arrow_right: https://juancarlospaco.github.io/cpython/fnmatch
- :heavy_check_mark: gc :arrow_right: https://juancarlospaco.github.io/cpython/gc
- :heavy_check_mark: getopt :arrow_right: https://juancarlospaco.github.io/cpython/getopt
- :heavy_check_mark: getpass :arrow_right: https://juancarlospaco.github.io/cpython/getpass
- :heavy_check_mark: gettext :arrow_right: https://juancarlospaco.github.io/cpython/gettext
- :heavy_check_mark: glob :arrow_right: https://juancarlospaco.github.io/cpython/glob
- :heavy_check_mark: grp :arrow_right: https://juancarlospaco.github.io/cpython/grp
- :heavy_check_mark: gzip :arrow_right: https://juancarlospaco.github.io/cpython/gzip
- :heavy_check_mark: hashlib :arrow_right: https://juancarlospaco.github.io/cpython/hashlib
- :heavy_check_mark: hmac :arrow_right: https://juancarlospaco.github.io/cpython/hmac
- :heavy_check_mark: html.entities :arrow_right: https://juancarlospaco.github.io/cpython/html_entities
- :heavy_check_mark: imghdr :arrow_right: https://juancarlospaco.github.io/cpython/imghdr
- :heavy_check_mark: imp :arrow_right: https://juancarlospaco.github.io/cpython/imp
- :heavy_check_mark: importlib :arrow_right: https://juancarlospaco.github.io/cpython/importlib
- :heavy_check_mark: keyword :arrow_right: https://juancarlospaco.github.io/cpython/keyword
- :heavy_check_mark: linecache :arrow_right: https://juancarlospaco.github.io/cpython/linecache
- :heavy_check_mark: logging :arrow_right: https://juancarlospaco.github.io/cpython/logging
- :heavy_check_mark: lzma :arrow_right: https://juancarlospaco.github.io/cpython/lzma
- :heavy_check_mark: marshal :arrow_right: https://juancarlospaco.github.io/cpython/marshal
- :heavy_check_mark: math :arrow_right: https://juancarlospaco.github.io/cpython/math
- :heavy_check_mark: mimetypes :arrow_right: https://juancarlospaco.github.io/cpython/mimetypes
- :heavy_check_mark: ntpath :arrow_right: https://juancarlospaco.github.io/cpython/ntpath
- :heavy_check_mark: nis :arrow_right: https://juancarlospaco.github.io/cpython/nis
- :heavy_check_mark: operator :arrow_right: https://juancarlospaco.github.io/cpython/operator
- :heavy_check_mark: os :arrow_right: https://juancarlospaco.github.io/cpython/os
- :heavy_check_mark: pickle :arrow_right: https://juancarlospaco.github.io/cpython/pickle
- :heavy_check_mark: pickletools :arrow_right: https://juancarlospaco.github.io/cpython/pickletools
- :heavy_check_mark: pkgutil :arrow_right: https://juancarlospaco.github.io/cpython/pkgutil
- :heavy_check_mark: posixpath :arrow_right: https://juancarlospaco.github.io/cpython/posixpath
- :heavy_check_mark: pprint :arrow_right: https://juancarlospaco.github.io/cpython/pprint
- :heavy_check_mark: pwd :arrow_right: https://juancarlospaco.github.io/cpython/pwd
- :heavy_check_mark: py_compile :arrow_right: https://juancarlospaco.github.io/cpython/py_compile
- :heavy_check_mark: quopri :arrow_right: https://juancarlospaco.github.io/cpython/quopri
- :heavy_check_mark: random :arrow_right: https://juancarlospaco.github.io/cpython/random
- :heavy_check_mark: re :arrow_right: https://juancarlospaco.github.io/cpython/re
- :heavy_check_mark: readline :arrow_right: https://juancarlospaco.github.io/cpython/readline
- :heavy_check_mark: reprlib :arrow_right: https://juancarlospaco.github.io/cpython/reprlib
- :heavy_check_mark: resource :arrow_right: https://juancarlospaco.github.io/cpython/resource
- :heavy_check_mark: runpy :arrow_right: https://juancarlospaco.github.io/cpython/runpy
- :heavy_check_mark: secrets :arrow_right: https://juancarlospaco.github.io/cpython/secrets
- :heavy_check_mark: shutil :arrow_right: https://juancarlospaco.github.io/cpython/shutil
- :heavy_check_mark: signal :arrow_right: https://juancarlospaco.github.io/cpython/signal
- :heavy_check_mark: site :arrow_right: https://juancarlospaco.github.io/cpython/site
- :heavy_check_mark: sndhdr :arrow_right: https://juancarlospaco.github.io/cpython/sndhdr
- :heavy_check_mark: spwd :arrow_right: https://juancarlospaco.github.io/cpython/spwd
- :heavy_check_mark: statistics :arrow_right: https://juancarlospaco.github.io/cpython/statistics
- :heavy_check_mark: struct :arrow_right: https://juancarlospaco.github.io/cpython/struct
- :heavy_check_mark: ssl :arrow_right: https://juancarlospaco.github.io/cpython/ssl
- :heavy_check_mark: subprocess :arrow_right: https://juancarlospaco.github.io/cpython/subprocess
- :heavy_check_mark: sys :arrow_right: https://juancarlospaco.github.io/cpython/sys
- :heavy_check_mark: sysconfig :arrow_right: https://juancarlospaco.github.io/cpython/sysconfig
- :heavy_check_mark: syslog :arrow_right: https://juancarlospaco.github.io/cpython/syslog
- :heavy_check_mark: tabnanny :arrow_right: https://juancarlospaco.github.io/cpython/tabnanny
- :heavy_check_mark: tempfile :arrow_right: https://juancarlospaco.github.io/cpython/tempfile
- :heavy_check_mark: termios :arrow_right: https://juancarlospaco.github.io/cpython/termios
- :heavy_check_mark: textwrap :arrow_right: https://juancarlospaco.github.io/cpython/textwrap
- :heavy_check_mark: timeit :arrow_right: https://juancarlospaco.github.io/cpython/timeit
- :heavy_check_mark: token :arrow_right: https://juancarlospaco.github.io/cpython/token
- :heavy_check_mark: tty :arrow_right: https://juancarlospaco.github.io/cpython/tty
- :heavy_check_mark: turtle :arrow_right: https://juancarlospaco.github.io/cpython/turtle
- :heavy_check_mark: typing :arrow_right: https://juancarlospaco.github.io/cpython/typing
- :heavy_check_mark: unicodedata :arrow_right: https://juancarlospaco.github.io/cpython/unicodedata
- :heavy_check_mark: uu :arrow_right: https://juancarlospaco.github.io/cpython/uu
- :heavy_check_mark: uuid :arrow_right: https://juancarlospaco.github.io/cpython/uuid
- :heavy_check_mark: venv :arrow_right: https://juancarlospaco.github.io/cpython/venv
- :heavy_check_mark: warnings :arrow_right: https://juancarlospaco.github.io/cpython/warnings
- :heavy_check_mark: webbrowser :arrow_right: https://juancarlospaco.github.io/cpython/webbrowser
- :heavy_check_mark: winsound :arrow_right: https://juancarlospaco.github.io/cpython/winsound
- :heavy_check_mark: zipapp :arrow_right: https://juancarlospaco.github.io/cpython/zipapp
- :heavy_check_mark: zlib :arrow_right: https://juancarlospaco.github.io/cpython/zlib
- :trollface: More supported modules soon...
- For more documentation, use Python official documentation, works too.
UPBGE
UPBGE API is supported out of the box, new UPBGE features will be integrated.
3D Games, GUI with OpenGL and shaders, audio, video, and more...

Are you Gamedev?, Pull Requests welcome!.
Design
- 1 Dependency only.
- 1 Nim module per 1 Python module.
- Module files are <200 lines each of pure Nim code.
- Arbitrary precision big Decimals with all the operators for Nim.
- Compatible with ARC and ORC deterministic memory nanagement.
- Enforces real strong inferred static typing with UFCS for Python.
- Same API as Python StdLib, same function names, same argument names (Names starting and ending with double underscore are not legal in Nim).
- Use the vanilla official Python StdLib that you already know by memory.
- Same module filenames as Python StdLib, same imports as Python StdLib.
- Documentation online, but also any Python documentation should work too.
- Simple code using template, easy to hack for new users, KISS & DRY.
- Stuff deprecated/removed in Python before year 2020 will not be supported.
- We do not deprecate stuff, even if Python deprecate/remove it, it will keep working for Nim.
- Each file is completely self-contained standalone, you can copy just 1 file on your project and use it.
- If Python removes a module from StdLib you must obtain the
.pyfile somehow, but the.nimremains. - It does not use anything from Nim standard library, very future-proof (uses Nimpy for Python-Nim interop, but other than that they are thin wrappers, with minimal dependency on StdLib).
- Package version == Python version.
- Pet the turtle.
Requisites
- Python ( >
2.7works but unsupported, >3.5minimal, >=3.10recommended ).
Install
nimble install cpython
OR
nimble install https://github.com/juancarlospaco/cpython.git
Doing JavaScript or Web Dev ?
Why?
The idea comes from the community of "Nim en Espanol" Telegram group (Spanish).
Also...
- Whole new StdLib becomes usable for Nim, without Nim having to spend resources.
- Showcase easy interoperability of Nim (CTypes is harder, Python is verbose, etc).
- Arbitrary precision big Decimals for Nim.
- Others do it too (Scala/Kotlin uses Java StbLib, Swift uses Objective-C StdLib, etc).
- Python does it too, Python is written in C therefore using C StdLib.
- Make others work improving libs that you can use in Nim.
- A place to pile up "Nim-ified" Python stuff.
See also
- For Python Programmers
- Nim integration for Python PIP
- Python modules Deprecated from Python StdLib for download (PEP594)
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