to-requirements.txt 2.0.14
Automatically add and delete modules to requirements.txt installing them using pip.
License: MIT
Keywords: pip, requirements.txt, dependency, dependencies, requirements, packages, wrapper, repository

# REX | Automatically Update requirements.txt

[![PyPI Release](https://img.shields.io/pypi/v/to-requirements.txt)](https://pypi.org/project/to-requirements.txt/)
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[![Maintainability](https://img.shields.io/maintenance/yes/2025)](https://img.shields.io/maintenance/yes/2025)
[![License](https://img.shields.io/github/license/VoIlAlex/requirements-txt)](https://github.com/VoIlAlex/requirements-txt/blob/master/LICENSE.md)

**REX** allows for the automatic management of dependencies in `requirements.txt` using **pip** as a package manager.

[![Demo](https://media.giphy.com/media/y9dUiCm2SwaU8qR0eD/giphy.gif)](https://media.giphy.com/media/y9dUiCm2SwaU8qR0eD/giphy.gif)

## Benefits

- **Easy Setup**: The installation process involves just two steps: installing the package using pip and setting it up using the provided script. That's it.
  
- **One-Command Setup**: Set up a VirtualEnv-based project in a single command. It creates a virtual environment and installs *to-requirements.txt* automatically.

- **Customizable**: Customize it as you prefer: use it only in Git repositories, allow or disallow automated `requirements.txt` file creation, enable or disable the package itself.

- **User-Friendly**: After installation and setup, there are no additional conditions to use. Simply install, uninstall, or upgrade packages using *pip* as usual.

- **Always in Sync**: With *to-requirements.txt*, the project's `requirements.txt` will always stay in sync with packages installed via *pip*.

## Installation

To install the package, run the following command:

```shell
pip install rex
```

To enable all available functionality, add the following lines to your `.bashrc`, `.zshrc`, or other `.*rc` file:

```shell
rex alias
```

or just paste this lines to your `.bashrc`, `.zshrc`, or other `.*rc` file:
```shell
alias rt=". rt"
alias requirements-txt=". requirements-txt"
alias rex=". rex"
```

This enables sourced mode of the CLI execution and allows the CLI to activate or deactivate your virtual environment if required.

### Setup Project

To set up a VirtualEnv-based project, simply type:

```shell
rex init
```

Or, achieve the same effect more easily with aliases:

```shell
rex i
```

*Note: The changes made to **pip** scripts will not affect the ordinary *pip* workflow after uninstalling **to-requirements.txt*.**

## Aliases

There are a few aliases available to use instead of `rex` command:
- `requirements-txt` - legacy command.
- `rt` - legacy command shortened.


## Documentation

For detailed documentation, visit [requirements-txt.readthedocs.io](https://requirements-txt.readthedocs.io/en/latest/index.html).

## Contributing

See [CONTRIBUTING.md](CONTRIBUTING.md) for contribution guidelines.

## License

This project is licensed under the [MIT License](LICENSE.md).