to-requirements.txt

2.0.14 verified Mon Apr 27 auth: no python

Automatically add and delete modules from requirements.txt when installing or uninstalling with pip. Current version: 2.0.14. Releases are monthly.

pip install to-requirements-txt

Common errors

error pip: 'no-reqs-update' is not a valid option ↓

cause Older versions of pip do not support custom options from plugins.

fix

Upgrade pip to >=20.0 or use PIP_NO_REQS_UPDATE=1 pip install ... environment variable.

error ModuleNotFoundError: No module named 'to_requirements_txt' ↓

cause Trying to import the package directly; it's a pip plugin, not importable.

fix

Do not import it; just install it and use pip normally.

Warnings

gotcha The package is a pip plugin and does not work with pipx or virtual environments that use different pip paths. ↓

fix Run pip install/uninstall in the same environment where the package is installed (e.g., same virtualenv).

gotcha It can create duplicate entries if you manually edit requirements.txt then pip install. ↓

fix Use `pip install --no-reqs-update` to skip auto-update, or clean up manually.

deprecated The command-line tool 'to-requirements-txt' (as a script) is deprecated; only the pip plugin is maintained. ↓

fix Use pip install/uninstall normally; the plugin works automatically.

gotcha If you uninstall this package itself, it may also be removed from requirements.txt. ↓

fix Disable auto-update with `pip install --no-reqs-update to-requirements-txt` before uninstalling.

Imports

to-requirements-txt
wrong
```
import to_requirements_txt
```
correct
```
No explicit import — the package works via pip plugins.
```
This is a pip plugin, not a regular Python module. Importing it does nothing.

Quickstart

The tool hooks into pip install/uninstall and automatically syncs requirements.txt.

# After installation, pip operations automatically update requirements.txt
# Example: pip install requests  # adds requests to requirements.txt
# Example: pip uninstall requests  # removes requests from requirements.txt
# To disable temporarily: pip install --no-reqs-update requests