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github.com/ebeweber/flake8-mutable @v1.2.0
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README
flake8-mutable
Motivation
Python's default arguments are evaluated at definition as opposed to when the function is invoked. This leads to unexpected behavior, as mutations persist between calls. For a more detailed explanation, see The Hitchhiker's Guide to Python.
Example
def fnc(a, b={}):
pass
foo.py:2:14: M511 - mutable default arg of type Dict
Installation
pip install flake8-mutable
Changes
[1.1.0] 2016-11-26
- Callables
[1.0.6] 2016-11-26
- added MANIFEST.in
License
Core symbols most depended-on inside this repo
Shape
Languages
Python100%
Modules by API surface
mutable_defaults.py3 symbols
tests/mutable_defaults_test.py2 symbols
For agents
$ claude mcp add flake8-mutable \
-- python -m otcore.mcp_server <graph>