A linter for Cython files
Project description
cython-lint
A tool and pre-commit hook to lint Cython files.
Installation
$ pip install cython-lint
Usage as a pre-commit hook
See pre-commit for instructions
Sample .pre-commit-config.yaml:
- repo: https://github.com/MarcoGorelli/cython-lint
rev: v0.3.1
hooks:
- id: cython-lint
Command-line example
$ cython-lint my_file_1.pyx my_file_2.pyx
my_file_1.pyx:54:5: 'get_conversion_factor' imported but unused
my_file_2.pyx:1112:38: 'mod' defined but unused
Configuration
The following configuration options are available:
- exclude lines by including a
# no-cython-lintcomment (analogous to# noqainflake8); - use the command-line argument
--max-line-lengthto control the maximum line length used by pycodestyle; - use the command-line argument
--no-pycodestyleif you don't want the pycodestyle checks.
Currently, the following checks are implemented:
- variable defined but unused
- variable imported but unused
- comma after base type definition (e.g.
cdef ndarray, arr) - pycodestyle checks, except these that aren't in general applicable to Cython code:
- E121 continuation line under-indented for hanging indent
- E123 closing bracket does not match indentation of opening bracket’s line
- E126 continuation line over-indented for hanging indent
- E133 closing bracket is missing indentation
- E203 whitespace before ‘,’, ‘;’, or ‘:’
- E211 whitespace before '('
- E225 missing whitespace around operator
- E226 missing whitespace around arithmetic operator
- E227 missing whitespace around bitwise or shift operator
- E241 multiple spaces after ‘,’
- E242 tab after ‘,’
- E271 multiple spaces after keyword
- E272 multiple spaces before keyword
- E275 missing whitespace after keyword
- E4 imports (
isortsupports Cython code, best to just use that) - E704 multiple statements on one line (def)
- E9 runtime
- W5 line break warning
More to come! Requests welcome!
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