https://github.com/pwwang/pipen
A pipeline framework for python
https://github.com/pwwang/pipen
dot jinja2 pipeline pipeline-framework python workflow workflow-engine
Last synced: 5 months ago
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A pipeline framework for python
- Host: GitHub
- URL: https://github.com/pwwang/pipen
- Owner: pwwang
- License: apache-2.0
- Created: 2017-01-27T22:39:34.000Z (over 9 years ago)
- Default Branch: master
- Last Pushed: 2025-03-14T05:42:47.000Z (over 1 year ago)
- Last Synced: 2025-04-03T17:11:11.562Z (about 1 year ago)
- Topics: dot, jinja2, pipeline, pipeline-framework, python, workflow, workflow-engine
- Language: Python
- Homepage: https://pwwang.github.io/pipen/
- Size: 6.45 MB
- Stars: 104
- Watchers: 10
- Forks: 15
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
**A pipeline framework for python**
______________________________________________________________________
[![Pypi][6]][7] [![Github][8]][9] ![Building][10] [![Docs and API][11]][1] [![Codacy][12]][13] [![Codacy coverage][14]][13] [![Deps][5]][23]
[Documentation][1] | [ChangeLog][2] | [Examples][3] | [API][4]
## Features
- Easy to use
- Nearly zero-configuration
- Nice logging
- Highly extendable
- Cloud support naively
## Installation
```bash
pip install -U pipen
```
## Quickstart
`example.py`
```python
from pipen import Proc, Pipen, run
class P1(Proc):
"""Sort input file"""
input = "infile"
input_data = ["/tmp/data.txt"]
output = "outfile:file:intermediate.txt"
script = "cat {{in.infile}} | sort > {{out.outfile}}"
class P2(Proc):
"""Paste line number"""
requires = P1
input = "infile:file"
output = "outfile:file:result.txt"
script = "paste <(seq 1 3) {{in.infile}} > {{out.outfile}}"
# class MyPipeline(Pipen):
# starts = P1
if __name__ == "__main__":
# MyPipeline().run()
run("MyPipeline", starts=P1)
```
```shell
> echo -e "3\n2\n1" > /tmp/data.txt
> python example.py
```
```log
04-17 16:19:35 I core _____________________________________ __
04-17 16:19:35 I core ___ __ \___ _/__ __ \__ ____/__ | / /
04-17 16:19:35 I core __ /_/ /__ / __ /_/ /_ __/ __ |/ /
04-17 16:19:35 I core _ ____/__/ / _ ____/_ /___ _ /| /
04-17 16:19:35 I core /_/ /___/ /_/ /_____/ /_/ |_/
04-17 16:19:35 I core
04-17 16:19:35 I core version: 1.0.2
04-17 16:19:35 I core
04-17 16:19:35 I core ╔═══════════════════════════ MYPIPELINE ════════════════════════════╗
04-17 16:19:35 I core ║ My pipeline ║
04-17 16:19:35 I core ╚═══════════════════════════════════════════════════════════════════╝
04-17 16:19:35 I core plugins : verbose v0.14.1
04-17 16:19:35 I core # procs : 2
04-17 16:19:35 I core profile : default
04-17 16:19:35 I core outdir : /path/to/cwd/MyPipeline-output
04-17 16:19:35 I core cache : True
04-17 16:19:35 I core dirsig : 1
04-17 16:19:35 I core error_strategy : ignore
04-17 16:19:35 I core forks : 1
04-17 16:19:35 I core lang : bash
04-17 16:19:35 I core loglevel : info
04-17 16:19:35 I core num_retries : 3
04-17 16:19:35 I core scheduler : local
04-17 16:19:35 I core submission_batch: 8
04-17 16:19:35 I core template : liquid
04-17 16:19:35 I core workdir : /path/to/cwd/.pipen/MyPipeline
04-17 16:19:35 I core plugin_opts :
04-17 16:19:35 I core template_opts : filters={'realpath': >> ['P2']
04-17 16:19:36 I verbose P1: in.infile: /tmp/data.txt
04-17 16:19:36 I verbose P1: out.outfile: /path/to/cwd/.pipen/MyPipeline/P1/0/output/intermediate.txt
04-17 16:19:38 I verbose P1: Time elapsed: 00:00:02.051s
04-17 16:19:38 I core
04-17 16:19:38 I core ╭═══════════════════════════════ P2 ════════════════════════════════╮
04-17 16:19:38 I core ║ Paste line number ║
04-17 16:19:38 I core ╰═══════════════════════════════════════════════════════════════════╯
04-17 16:19:38 I core P2: Workdir: '/path/to/cwd/.pipen/MyPipeline/P2'
04-17 16:19:38 I core P2: <<< ['P1']
04-17 16:19:38 I core P2: >>> [END]
04-17 16:19:38 I verbose P2: in.infile: /path/to/cwd/.pipen/MyPipeline/P1/0/output/intermediate.txt
04-17 16:19:38 I verbose P2: out.outfile: /path/to/cwd/MyPipeline-output/P2/result.txt
04-17 16:19:41 I verbose P2: Time elapsed: 00:00:02.051s
04-17 16:19:41 I core
MYPIPELINE: 100%|██████████████████████████████| 2/2 [00:06<00:00, 0.35 procs/s]
```
```shell
> cat ./MyPipeline-output/P2/result.txt
1 1
2 2
3 3
```
## Examples
See more examples at `examples/` and a more realcase example at:
## Plugin gallery
Plugins make `pipen` even better.
- [`pipen-annotate`][26]: Use docstring to annotate pipen processes
- [`pipen-args`][19]: Command line argument parser for pipen
- [`pipen-board`][27]: Visualize configuration and running of pipen pipelines on the web
- [`pipen-diagram`][18]: Draw pipeline diagrams for pipen
- [`pipen-dry`][20]: Dry runner for pipen pipelines
- [`pipen-filters`][17]: Add a set of useful filters for pipen templates.
- [`pipen-lock`][25]: Process lock for pipen to prevent multiple runs at the same time.
- [`pipen-log2file`][28]: Save running logs to file for pipen
- [`pipen-poplog`][30]: Populate logs from jobs to running log of the pipeline
- [`pipen-report`][16]: Generate report for pipen
- [`pipen-runinfo`][29]: Save running information to file for pipen
- [`pipen-verbose`][15]: Add verbosal information in logs for pipen.
- [`pipen-gcs`][32]: A plugin for pipen to handle files in Google Cloud Storage.
- [`pipen-deprecated`][34]: A pipen plugin to mark processes as deprecated.
- [`pipen-cli-init`][21]: A pipen CLI plugin to create a pipen project (pipeline)
- [`pipen-cli-ref`][31]: Make reference documentation for processes
- [`pipen-cli-require`][24]: A pipen cli plugin check the requirements of a pipeline
- [`pipen-cli-run`][22]: A pipen cli plugin to run a process or a pipeline
- [`pipen-cli-gbatch`][33]: A pipen cli plugin to submit pipeline to Google Batch Jobs
[1]: https://pwwang.github.io/pipen
[2]: https://pwwang.github.io/pipen/CHANGELOG
[3]: https://pwwang.github.io/pipen/examples
[4]: https://pwwang.github.io/pipen/api/pipen
[5]: https://img.shields.io/librariesio/release/pypi/pipen?style=flat-square
[6]: https://img.shields.io/pypi/v/pipen?style=flat-square
[7]: https://pypi.org/project/pipen/
[8]: https://img.shields.io/github/v/tag/pwwang/pipen?style=flat-square
[9]: https://github.com/pwwang/pipen
[10]: https://img.shields.io/github/actions/workflow/status/pwwang/pipen/build.yml?style=flat-square
[11]: https://img.shields.io/github/actions/workflow/status/pwwang/pipen/docs.yml?label=docs&style=flat-square
[12]: https://img.shields.io/codacy/grade/cf1c6c97e5c4480386a05b42dec10c6e?style=flat-square
[13]: https://app.codacy.com/gh/pwwang/pipen
[14]: https://img.shields.io/codacy/coverage/cf1c6c97e5c4480386a05b42dec10c6e?style=flat-square
[15]: https://github.com/pwwang/pipen-verbose
[16]: https://github.com/pwwang/pipen-report
[17]: https://github.com/pwwang/pipen-filters
[18]: https://github.com/pwwang/pipen-diagram
[19]: https://github.com/pwwang/pipen-args
[20]: https://github.com/pwwang/pipen-dry
[21]: https://github.com/pwwang/pipen-cli-init
[22]: https://github.com/pwwang/pipen-cli-run
[23]: https://libraries.io/github/pwwang/pipen#repository_dependencies
[24]: https://github.com/pwwang/pipen-cli-require
[25]: https://github.com/pwwang/pipen-lock
[26]: https://github.com/pwwang/pipen-annotate
[27]: https://github.com/pwwang/pipen-board
[28]: https://github.com/pwwang/pipen-log2file
[29]: https://github.com/pwwang/pipen-runinfo
[30]: https://github.com/pwwang/pipen-poplog
[31]: https://github.com/pwwang/pipen-cli-ref
[32]: https://github.com/pwwang/pipen-gcs
[33]: https://github.com/pwwang/pipen-cli-gbatch
[34]: https://github.com/pwwang/pipen-deprecated