# pipreqs

> Pip requirements.txt generator based on imports in project

**Wikidata**: [Q100153181](https://www.wikidata.org/wiki/Q100153181)  
**Source**: https://4ort.xyz/entity/pipreqs

## Summary
Pipreqs is an open-source Python tool that automatically generates a `requirements.txt` file by analyzing import statements in a project's code, helping developers manage project dependencies efficiently.

## Key Facts
- Pipreqs is an open-source software library written in Python for generating requirements files.
- It uses the Apache Software License 2.0.
- The most recent stable version is 0.5.0 as of February 18, 2024.
- The author is Vadim Kravcenko.
- It depends on the docopt and yarg software libraries.
- The project is hosted on GitHub at https://github.com/bndr/pipreqs.
- It has a PyPI project entry with the same name.
- It's available as an AUR package named python-pipreqs and as an OpenSUSE package.

## FAQs
### Q: What is pipreqs used for?
A: Pipreqs is used to automatically generate a `requirements.txt` file by analyzing import statements in a Python project's code.

### Q: What programming language is pipreqs written in?
A: Pipreqs is written in Python.

### Q: What license is pipreqs released under?
A: Pipreqs is released under the Apache Software License 2.0.

### Q: What are the dependencies for pipreqs?
A: Pipreqs depends on the docopt and yarg software libraries.

## Why It Matters
Pipreqs addresses a common challenge in Python development where maintaining dependency lists manually can be error-prone and time-consuming. By automatically generating requirements files based on actual imports, it helps ensure that only necessary packages are included in project dependencies, reducing the risk of unused dependencies and simplifying dependency management across different environments. This automation streamlines the development workflow and improves consistency in project setup.

## Notable For
- Firsts: It was one of the early tools specifically designed to generate requirements files by analyzing import statements rather than requiring manual configuration.
- Efficiency: It provides a more accurate and efficient way to maintain dependency lists compared to manual approaches or other tools that might include unnecessary packages.
- Simplicity: The tool's approach of analyzing imports directly from the code makes it straightforward to use and integrate into existing development workflows.
- Accuracy: By focusing on actual imports used in the project, it avoids including packages that are imported but not used, reducing unnecessary dependencies.

## Body
### Technical Overview
Pipreqs is a command-line utility that scans Python source files to identify imported packages and generates a `requirements.txt` file containing only those dependencies. The tool analyzes import statements and creates a minimal dependency list, excluding packages that are imported but not used in the code.

### Development History
The project has undergone several version releases with regular updates:
- Version 0.4.10 was released on November 14, 2019
- Version 0.4.11 was released on October 23, 2021
- Version 0.4.12 was released on April 12, 2023
- Version 0.4.13 was released on April 14, 2023
- The stable version 0.5.0 was released on February 18, 2024

### Licensing and Distribution
Pipreqs is distributed under the Apache Software License 2.0, which provides permissive terms allowing free use, modification, and distribution of the software. The project is available on PyPI and can be installed via pip. It also has package repositories for AUR and OpenSUSE distributions.

### Dependencies and Architecture
The tool has minimal dependencies, requiring only the docopt and yarg libraries for its functionality. The implementation is designed to be lightweight and efficient, making it suitable for use in various development environments.

### Usage and Integration
Pipreqs can be integrated into development workflows through continuous integration systems or as part of project setup scripts. It helps maintain clean dependency lists by ensuring that only packages actually used in the project are included in the requirements file.

## References

1. [Source](https://api.github.com/repos/bndr/pipreqs)
2. [Release 0.4.10. 2019](https://github.com/bndr/pipreqs/releases/tag/v0.4.10)
3. [Release 0.4.11. 2021](https://github.com/bndr/pipreqs/releases/tag/v0.4.11)
4. [Release 0.4.12. 2023](https://github.com/bndr/pipreqs/releases/tag/v0.4.12)
5. [Release 0.4.13. 2023](https://github.com/bndr/pipreqs/releases/tag/v0.4.13)
6. [Release 0.5.0. 2024](https://github.com/bndr/pipreqs/releases/tag/v0.5.0)