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containerlog-0.4.2
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Optimized, opinionated structured logging for Python
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | containerlog-0.4.2 |
| نام | containerlog |
| نسخه کتابخانه | 0.4.2 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Erick Daniszewski |
| ایمیل نویسنده | erick@vapor.io |
| آدرس صفحه اصلی | https://github.com/vapor-ware/containerlog |
| آدرس اینترنتی | https://pypi.org/project/containerlog/ |
| مجوز | GPL-3.0-or-later |
# containerlog
A lightweight, optimized, and opinionated structured logging library for Python, intended for containerized applications.
`containerlog` was born out of a desire to have high-quality structured logging for
containerized applications (e.g. microservices) without having to compromise detailed
logging for application/request latency.
[`structlog`](https://www.structlog.org/en/stable/) is a great general-purpose structured
logging library for Python, but being general-purpose means that there is additional overhead
when logging messages.
When [we](https://github.com/vapor-ware) updated a microservice to use structured logging,
we found that [request latency went up](https://github.com/vapor-ware/synse-server/issues/384),
seemingly due to the transition to use `structlog`.
`containerlog` is not for everyone. It is highly opinionated, minimally configurable,
and intentionally feature-sparse so that it can achieve [better performance](#benchmarks) than
the Python standard logger
Not every application needs optimized logging, but where latency and performance matters,
`containerlog` could work for you.
```
timestamp='2020-07-23T13:11:28.009804Z' logger='my-logger' level='debug' event='loading configuration' path='./config.yaml'
timestamp='2020-07-23T13:11:28.010137Z' logger='my-logger' level='info' event='starting application'
timestamp='2020-07-23T13:11:28.010158Z' logger='my-logger' level='warn' event='having too much fun' countdown=[3, 2, 1]
```
## Installation
`containerlog` can be installed with pip:
```
pip install containerlog
```
It is only intended to work for Python 3.6+.
## Usage
See the documentation at https://containerlog.readthedocs.io/en/latest/
## Optimizations
There are numerous sources discussion micro-optimizations in Python. This project probably
does not implement them all, so there is room for improvement. Current optimization work has
leveraged:
* [`dis`](https://docs.python.org/3/library/dis.html): to disassemble python bytecode for analysis
* [`timeit`](https://docs.python.org/3/library/timeit.html): to measure execution time of code snippets
If you wish to contribute optimizations and use other libraries, tools, or sources, open a PR to add
them to this list.
## Benchmarks
Benchmarking scripts can be found in the [benchmarks](benchmarks) directory. To run,
```
$ cd benchmarks
$ ./run.sh
```
This will run benchmarks the Python standard logger and for `containerlog`. The latest results
can be found below.
### Results
Benchmarks were measured using Python 3.8.0 on macOS 10.15.1 with a 2.9 GHz 6-Core Intel Core i9
processor and 16 GB 2400 MHz DDR4 memory.
| Benchmark | std logger (ns) | std proxy (ns) | containerlog (ns) |
| --------- | --------------- | -------------- | ----------------- |
| baseline | 0.68 +/- 0.02 | 0.69 +/- 0.01 | 0.7 +/- 0.02 |
| silent | 108.0 +/- 6.0 | 1140.0 +/- 50.0 | 51.7 +/- 1.7 |
| basic | 4750.0 +/- 160.0 | 1140.0 +/- 60.0 | 1070.0 +/- 50.0 |
| short-simple | 5370.0 +/- 160.0 | 1280.0 +/- 60.0 | 1330.0 +/- 60.0 |
| long-simple | 5280.0 +/- 180.0 | 1480.0 +/- 70.0 | 2120.0 +/- 60.0 |
| short-complex | 5630.0 +/- 170.0 | 1500.0 +/- 150.0 | 1480.0 +/- 80.0 |
| long-complex | 6900.0 +/- 190.0 | 2870.0 +/- 80.0 | 3260.0 +/- 80.0 |
| exception | 10400.0 +/- 300.0 | 4440.0 +/- 150.0 | 4370.0 +/- 500.0 |
## Contribute
While `containerlog` is intentionally feature-sparse, feature requests are welcome. Additionally,
if you can find any other ways to micro-optimize the codebase, pull requests are very much
appreciated.
زبان مورد نیاز
| مقدار | نام |
|---|---|
| >=3.6.1,<4.0.0 | Python |
نحوه نصب
نصب پکیج whl containerlog-0.4.2:
pip install containerlog-0.4.2.whl
نصب پکیج tar.gz containerlog-0.4.2:
pip install containerlog-0.4.2.tar.gz