run-on-save
Automatically runs a Python file whenever it's saved. Useful for quick feedback loops during development.
Installation
uv tool install run-on-save
Usage
Run from your project directory:
run-on-save
Whenever you save a .py file, it will be executed automatically in the terminal.
Features
- 🔍 Watches the entire project directory recursively
- ⚡ Cooldown period to avoid duplicate runs on rapid saves
- 🧹 Clears the terminal before each run
- 🚫 Ignores common non-source directories (
.venv,__pycache__,.git,node_modules, etc.) - 🔢 Runs files in unbuffered mode (
-u) so output appears immediately
Configuration
Edit the constants at the top of the source to adjust behaviour:
| Constant | Default | Description |
|---|---|---|
CLEAR_EACH_RUN |
True |
Clear terminal before each run |
COOLDOWN_SECONDS |
0.4 |
Minimum seconds between runs of the same file |
Ignored Directories
The following directories are ignored by default:
.git, .venv, venv, env, __pycache__, .mypy_cache, .pytest_cache,
node_modules, dist, build, .tox, .nox, .idea, .vscode, .zed, and more.
Requirements
- Python 3.13+
- watchdog
License
MIT
1 maintainer
Metadata
1 maintainer
Release files for run-on-save 0.1.0
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| File | Size | Uploaded | Provenance | |
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| run_on_save-0.1.0.tar.gz | 2.3 kB | Without provenance | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| run_on_save-0.1.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 5.6 kB
Release files / run_on_save-0.1.0.tar.gz
| Download URL | run_on_save-0.1.0.tar.gz |
|---|---|
| Size | 2.3 kB |
| Tags | Source |
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SHA-256 checksum How to use checksums |
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Release files / run_on_save-0.1.0-py3-none-any.whl
| Download URL | run_on_save-0.1.0-py3-none-any.whl |
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| Size | 3.3 kB |
| Tags | Python 3 |
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