Pre Script

Util for executing a custom script before running any python application or script without modifying the last one.

You may treat it as application pre-start hook.

Use cases

• patching log configs for a legacy application (sometimes it's pretty hard)
• auto-executing docker-compose.yml before running the application
• patching the application module (sometimes usefull for debugging)
• any case where you need to inject some temporary logic without modifying the application code base

Installation

$ pip install pre-script

Example

$ echo PRE_SCRIPT_ENABLED=1
$ echo 'print("hello from pre-script")' > .pre-script.py
$ echo 'print("hello from app")' > app.py

$ python app.py
$ hello from pre-script
$ hello from app

If required, the script name can be changed via PRE_SCRIPT_FILE environment variable.

License

Distributed under the terms of the [MIT license][license], Pre Script is free and open source software.