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libcst 1.8.6

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A concrete syntax tree with AST-like properties for Python 3.0 through 3.14 programs.

A concrete syntax tree with AST-like properties for Python 3.0 through 3.14 programs.

Stars: 1850, Watchers: 1850, Forks: 222, Open Issues: 163

The Instagram/LibCST repo was created 6 years ago and the last code push was 3 weeks ago.
The project is very popular with an impressive 1850 github stars!

How to Install libcst

You can install libcst using pip

pip install libcst

or add it to a project with poetry

poetry add libcst

Package Details

Author
None
License
All contributions towards LibCST are MIT licensed.
    Some Python files have been derived from the standard library and are therefore
    PSF licensed. Modifications on these files are dual licensed (both MIT and
    PSF). These files are:
    
    - libcst/_parser/base_parser.py
    - libcst/_parser/parso/utils.py
    - libcst/_parser/parso/pgen2/generator.py
    - libcst/_parser/parso/pgen2/grammar_parser.py
    - libcst/_parser/parso/python/py_token.py
    - libcst/_parser/parso/python/tokenize.py
    - libcst/_parser/parso/tests/test_fstring.py
    - libcst/_parser/parso/tests/test_tokenize.py
    - libcst/_parser/parso/tests/test_utils.py
    - native/libcst/src/tokenizer/core/mod.rs
    - native/libcst/src/tokenizer/core/string_types.rs
    
    Some Python files have been taken from dataclasses and are therefore Apache
    licensed. Modifications on these files are licensed under Apache 2.0 license.
    These files are:
    
    - libcst/_add_slots.py
    
    -------------------------------------------------------------------------------
    
    MIT License
    
    Copyright (c) Meta Platforms, Inc. and affiliates.
    
    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:
    
    The above copyright notice and this permission notice shall be included in all
    copies or substantial portions of the Software.
    
    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    SOFTWARE.
    
    -------------------------------------------------------------------------------
    
    PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
    
    1. This LICENSE AGREEMENT is between the Python Software Foundation
    ("PSF"), and the Individual or Organization ("Licensee") accessing and
    otherwise using this software ("Python") in source or binary form and
    its associated documentation.
    
    2. Subject to the terms and conditions of this License Agreement, PSF hereby
    grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce,
    analyze, test, perform and/or display publicly, prepare derivative works,
    distribute, and otherwise use Python alone or in any derivative version,
    provided, however, that PSF's License Agreement and PSF's notice of copyright,
    i.e., "Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
    2011, 2012, 2013, 2014, 2015 Python Software Foundation; All Rights Reserved"
    are retained in Python alone or in any derivative version prepared by Licensee.
    
    3. In the event Licensee prepares a derivative work that is based on
    or incorporates Python or any part thereof, and wants to make
    the derivative work available to others as provided herein, then
    Licensee hereby agrees to include in any such work a brief summary of
    the changes made to Python.
    
    4. PSF is making Python available to Licensee on an "AS IS"
    basis.  PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
    IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND
    DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
    FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT
    INFRINGE ANY THIRD PARTY RIGHTS.
    
    5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
    FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
    A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,
    OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
    
    6. This License Agreement will automatically terminate upon a material
    breach of its terms and conditions.
    
    7. Nothing in this License Agreement shall be deemed to create any
    relationship of agency, partnership, or joint venture between PSF and
    Licensee.  This License Agreement does not grant permission to use PSF
    trademarks or trade name in a trademark sense to endorse or promote
    products or services of Licensee, or any third party.
    
    8. By copying, installing or otherwise using Python, Licensee
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    Agreement.
    
    -------------------------------------------------------------------------------
    
    APACHE LICENSE, VERSION 2.0
    
    http://www.apache.org/licenses/LICENSE-2.0
    </dd>
Homepage
None
PyPi:
https://pypi.org/project/libcst/
Documentation:
https://libcst.readthedocs.io/en/latest/
GitHub Repo:
https://github.com/Instagram/LibCST

Classifiers

  • Software Development/Libraries
No  libcst  pypi packages just yet.

Errors

A list of common libcst errors.

Code Examples

Here are some libcst code examples and snippets.

GitHub Issues

The libcst package has 163 open issues on GitHub

  • Fix/spelling typos

See more issues on GitHub