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282 lines
7.4 KiB
282 lines
7.4 KiB
Metadata-Version: 2.1
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Name: parso
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Version: 0.8.3
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Summary: A Python Parser
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Home-page: https://github.com/davidhalter/parso
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Author: David Halter
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Author-email: davidhalter88@gmail.com
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Maintainer: David Halter
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Maintainer-email: davidhalter88@gmail.com
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License: MIT
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Keywords: python parser parsing
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Platform: any
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Classifier: Development Status :: 4 - Beta
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Classifier: Environment :: Plugins
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Classifier: Intended Audience :: Developers
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Classifier: License :: OSI Approved :: MIT License
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Classifier: Operating System :: OS Independent
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Classifier: Programming Language :: Python :: 3
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Classifier: Programming Language :: Python :: 3.6
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Classifier: Programming Language :: Python :: 3.7
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Classifier: Programming Language :: Python :: 3.8
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Classifier: Programming Language :: Python :: 3.9
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Classifier: Topic :: Software Development :: Libraries :: Python Modules
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Classifier: Topic :: Text Editors :: Integrated Development Environments (IDE)
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Classifier: Topic :: Utilities
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Classifier: Typing :: Typed
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Requires-Python: >=3.6
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Provides-Extra: qa
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Requires-Dist: flake8 (==3.8.3) ; extra == 'qa'
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Requires-Dist: mypy (==0.782) ; extra == 'qa'
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Provides-Extra: testing
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Requires-Dist: docopt ; extra == 'testing'
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Requires-Dist: pytest (<6.0.0) ; extra == 'testing'
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###################################################################
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parso - A Python Parser
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###################################################################
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.. image:: https://github.com/davidhalter/parso/workflows/Build/badge.svg?branch=master
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:target: https://github.com/davidhalter/parso/actions
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:alt: GitHub Actions build status
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.. image:: https://coveralls.io/repos/github/davidhalter/parso/badge.svg?branch=master
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:target: https://coveralls.io/github/davidhalter/parso?branch=master
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:alt: Coverage Status
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.. image:: https://pepy.tech/badge/parso
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:target: https://pepy.tech/project/parso
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:alt: PyPI Downloads
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.. image:: https://raw.githubusercontent.com/davidhalter/parso/master/docs/_static/logo_characters.png
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Parso is a Python parser that supports error recovery and round-trip parsing
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for different Python versions (in multiple Python versions). Parso is also able
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to list multiple syntax errors in your python file.
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Parso has been battle-tested by jedi_. It was pulled out of jedi to be useful
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for other projects as well.
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Parso consists of a small API to parse Python and analyse the syntax tree.
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A simple example:
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.. code-block:: python
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>>> import parso
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>>> module = parso.parse('hello + 1', version="3.9")
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>>> expr = module.children[0]
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>>> expr
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PythonNode(arith_expr, [<Name: hello@1,0>, <Operator: +>, <Number: 1>])
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>>> print(expr.get_code())
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hello + 1
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>>> name = expr.children[0]
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>>> name
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<Name: hello@1,0>
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>>> name.end_pos
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(1, 5)
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>>> expr.end_pos
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(1, 9)
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To list multiple issues:
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.. code-block:: python
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>>> grammar = parso.load_grammar()
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>>> module = grammar.parse('foo +\nbar\ncontinue')
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>>> error1, error2 = grammar.iter_errors(module)
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>>> error1.message
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'SyntaxError: invalid syntax'
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>>> error2.message
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"SyntaxError: 'continue' not properly in loop"
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Resources
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=========
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- `Testing <https://parso.readthedocs.io/en/latest/docs/development.html#testing>`_
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- `PyPI <https://pypi.python.org/pypi/parso>`_
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- `Docs <https://parso.readthedocs.org/en/latest/>`_
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- Uses `semantic versioning <https://semver.org/>`_
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Installation
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============
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pip install parso
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Future
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======
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- There will be better support for refactoring and comments. Stay tuned.
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- There's a WIP PEP8 validator. It's however not in a good shape, yet.
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Known Issues
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============
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- `async`/`await` are already used as keywords in Python3.6.
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- `from __future__ import print_function` is not ignored.
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Acknowledgements
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================
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- Guido van Rossum (@gvanrossum) for creating the parser generator pgen2
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(originally used in lib2to3).
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- `Salome Schneider <https://www.crepes-schnaegg.ch/cr%C3%AApes-schn%C3%A4gg/kunst-f%C3%BCrs-cr%C3%AApes-mobil/>`_
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for the extremely awesome parso logo.
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.. _jedi: https://github.com/davidhalter/jedi
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.. :changelog:
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Changelog
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---------
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Unreleased
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++++++++++
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0.8.3 (2021-11-30)
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++++++++++++++++++
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- Add basic support for Python 3.11 and 3.12
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0.8.2 (2021-03-30)
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++++++++++++++++++
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- Various small bugfixes
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0.8.1 (2020-12-10)
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++++++++++++++++++
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- Various small bugfixes
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0.8.0 (2020-08-05)
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++++++++++++++++++
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- Dropped Support for Python 2.7, 3.4, 3.5
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- It's possible to use ``pathlib.Path`` objects now in the API
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- The stubs are gone, we are now using annotations
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- ``namedexpr_test`` nodes are now a proper class called ``NamedExpr``
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- A lot of smaller refactorings
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0.7.1 (2020-07-24)
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++++++++++++++++++
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- Fixed a couple of smaller bugs (mostly syntax error detection in
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``Grammar.iter_errors``)
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This is going to be the last release that supports Python 2.7, 3.4 and 3.5.
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0.7.0 (2020-04-13)
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++++++++++++++++++
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- Fix a lot of annoying bugs in the diff parser. The fuzzer did not find
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issues anymore even after running it for more than 24 hours (500k tests).
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- Small grammar change: suites can now contain newlines even after a newline.
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This should really not matter if you don't use error recovery. It allows for
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nicer error recovery.
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0.6.2 (2020-02-27)
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++++++++++++++++++
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- Bugfixes
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- Add Grammar.refactor (might still be subject to change until 0.7.0)
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0.6.1 (2020-02-03)
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++++++++++++++++++
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- Add ``parso.normalizer.Issue.end_pos`` to make it possible to know where an
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issue ends
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0.6.0 (2020-01-26)
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++++++++++++++++++
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- Dropped Python 2.6/Python 3.3 support
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- del_stmt names are now considered as a definition
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(for ``name.is_definition()``)
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- Bugfixes
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0.5.2 (2019-12-15)
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++++++++++++++++++
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- Add include_setitem to get_definition/is_definition and get_defined_names (#66)
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- Fix named expression error listing (#89, #90)
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- Fix some f-string tokenizer issues (#93)
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0.5.1 (2019-07-13)
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++++++++++++++++++
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- Fix: Some unicode identifiers were not correctly tokenized
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- Fix: Line continuations in f-strings are now working
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0.5.0 (2019-06-20)
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++++++++++++++++++
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- **Breaking Change** comp_for is now called sync_comp_for for all Python
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versions to be compatible with the Python 3.8 Grammar
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- Added .pyi stubs for a lot of the parso API
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- Small FileIO changes
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0.4.0 (2019-04-05)
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++++++++++++++++++
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- Python 3.8 support
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- FileIO support, it's now possible to use abstract file IO, support is alpha
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0.3.4 (2019-02-13)
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+++++++++++++++++++
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- Fix an f-string tokenizer error
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0.3.3 (2019-02-06)
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+++++++++++++++++++
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- Fix async errors in the diff parser
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- A fix in iter_errors
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- This is a very small bugfix release
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0.3.2 (2019-01-24)
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+++++++++++++++++++
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- 20+ bugfixes in the diff parser and 3 in the tokenizer
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- A fuzzer for the diff parser, to give confidence that the diff parser is in a
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good shape.
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- Some bugfixes for f-string
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0.3.1 (2018-07-09)
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+++++++++++++++++++
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- Bugfixes in the diff parser and keyword-only arguments
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0.3.0 (2018-06-30)
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+++++++++++++++++++
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- Rewrote the pgen2 parser generator.
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0.2.1 (2018-05-21)
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+++++++++++++++++++
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- A bugfix for the diff parser.
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- Grammar files can now be loaded from a specific path.
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0.2.0 (2018-04-15)
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+++++++++++++++++++
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- f-strings are now parsed as a part of the normal Python grammar. This makes
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it way easier to deal with them.
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0.1.1 (2017-11-05)
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+++++++++++++++++++
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- Fixed a few bugs in the caching layer
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- Added support for Python 3.7
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0.1.0 (2017-09-04)
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+++++++++++++++++++
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- Pulling the library out of Jedi. Some APIs will definitely change.
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