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Rust-Native Engine
Powered by a Rust engine built with PyO3 for maximum performance and memory safety.
LoglyRust-Powered Logging for Python
A Rust-powered, high-performance logging library for Python.
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Quick Example
python
from logly import logger
# Add sinks with per-sink configuration
logger.add("app.log", level="DEBUG", rotation="daily", retention="30 days", compression="gzip")
logger.add("errors.log", level="ERROR", rotation="daily", retention="90 days")
logger.add("stdout", level="INFO", colorize=True)
# Log at all levels
logger.trace("Detailed trace")
logger.debug("Debug info")
logger.info("Application started")
logger.notice("Notice message")
logger.success("Operation completed!")
logger.warning("Warning message")
logger.error("Error occurred")
logger.fail("Operation failed")
logger.critical("Critical system error!")
logger.fatal("Fatal system failure!")
# Bind context
app_logger = logger.bind(user_id="12345", request_id="abc-789")
app_logger.info("User logged in")
# Exception handling
with logger.catch():
risky_operation()
logger.complete()Installation
bash
pip install loglybash
uv add loglybash
git clone https://github.com/muhammad-fiaz/logly.git
cd logly
uv sync
uv run maturin developWhy Logly?
| Feature | Logly | stdlib logging |
|---|---|---|
| Rust-native engine | ✅ | ❌ |
| 10 built-in log levels | ✅ | ❌ |
| Custom levels | ✅ | Manual |
| Multiple sinks | ✅ | ✅ |
| File rotation | ✅ | Handler dependent |
| Retention policies | ✅ | Handler dependent |
| Compression | ✅ | Handler dependent |
| JSON serialization | ✅ | Formatter dependent |
| Context binding | ✅ | Adapter based |
| Record patching | ✅ | ❌ |
| Exception catching | ✅ | ❌ |
| Background workers | ✅ | QueueHandler |
| FastAPI integration | ✅ | ❌ |
| Django integration | ✅ | ❌ |
| Rich console | ✅ | ❌ |
| Custom colors (ANSI) | ✅ | Manual |
| Type-safe config | ✅ | ❌ |
| Zero unsafe Rust | ✅ | N/A |
Acknowledgment
The API design of this project is inspired by Loguru by Delgan. Logly includes every feature you would expect from a mature logging library, plus additional capabilities like Rust-powered performance, network sinks (HTTP, TCP, UDP, Syslog), scheduled rotation, ANSI color themes, source context display, and 30+ framework integrations. We are grateful for the design inspiration.
Active Development
Logly is currently under active development and stabilizing. Due to this, performance benchmarks are not yet available. If you encounter any issues, please feel free to report them.