structloglint

A fast, opinionated linter for structlog log calls in Python. Written in Rust.

Status: Early development — GitHub

Installation

pip install structloglint

Usage

structloglint --path src/
structloglint --path . --select SL001,SL002 --ignore SL007 --output-format concise
structloglint --path . --max-event-length 40 --event-case-style camel_case

See RULES.md for the full list of rules (SL001--SL009) and configuration options.

Configuration

Add a [tool.structloglint] section to your pyproject.toml:

[tool.structloglint]
# Event string rules
event-case-style = "snake_case"
max-event-length = 30

# Loop logging
loop-log-level = "info"

# Rule selection (omit to run all)
select = ["SL001", "SL002", "SL003", "SL004", "SL005", "SL006", "SL007", "SL008", "SL009"]
ignore = []

# File discovery
include = ["src/**/*.py", "app/**/*.py"]
exclude = ["tests/**", "migrations/**"]
extend-exclude = ["generated/**"]

# Import detection
check-imports = true

# Per-rule severity overrides
[tool.structloglint.rules]
SL007 = "off"       # disable loop check
SL009 = "error"     # promote to error

Alternatively, create a standalone structloglint.toml in your project root (takes precedence over pyproject.toml). In standalone format, omit the [tool.structloglint] table wrapper:

# structloglint.toml (standalone)
event-case-style = "camel_case"
max-event-length = 50
loop-log-level = "info"
select = ["SL001", "SL002", "SL003", "SL004", "SL005", "SL006", "SL007", "SL008", "SL009"]
ignore = ["SL007"]
exclude = ["tests/**"]
check-imports = true

[rules]
SL007 = "off"

See RULES.md for all configuration options and rule descriptions.

See ROADMAP.md for the project plan.

License

MIT

Development Status
- 3 - Alpha
Environment
- Console
Intended Audience
- Developers
License
- OSI Approved :: MIT License
Programming Language
- Python :: 3
- Rust
Topic
- Software Development :: Quality Assurance

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structloglint 0.6.0

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