How to pass command line arguments to a Blender Python?

How to pass command line arguments to a Blender Python?

For a more comprehensive script example, background_job.py is a Python template which comes with Blender, this uses Python’s argparse module, for more flexible handling of arguments. If you want to have comprehensive arguments for your script with a –help message, Look into argparse, general Python docs on the module can be used.

Can a blender be compiled as a python script?

This is an experimental feature and not enabled by default, but Blender can be compiled as a python module. For scripts that are not interactive it can end up being more efficient not to use Blenders interface at all and instead execute the script on the command line.

How can I run Blender from command line?

Command-line / subprocess 1 You can use subprocess to run blender (like any other application) from python. 2 Use the -b / –background switch to run blender in the backgroud (GUI-less). 3 Use the -P / –python switch to load desired python script. Or use –python-console to run python… More

What to do when Blender does not render?

The following command will not work, since the output and extension are set after Blender is told to render: The following command will behave as expected: Always position -f or -a as the last arguments. Render in the background (without UI). Path to the blend-file to render.

How to run a python script in Blender?

Run the given Python script text block. Run the given expression as a Python script. Run Blender with an interactive console. Set the exit-code in [0..255] to exit if a Python exception is raised (only for scripts executed from the command line), zero disables.

How to debug Python script with arguments one by one?

To list arguments one by one is cumbersome and a bit silly. They just pass the arguments string to the Python parser, and things can be done easily. (Combining the two answers by Pawan Kumar and Chunde Huang .) File launch.json in the Python project folder path .vscode, tested in Visual Studio Code F5.

Can a python script read command line arguments?

Yes, Blender’s Python can read command line arguments. Scripts can check for — in sys.argv and ignore all arguments beforehand. Having spaces around — is important, this is a signal that Blender should stop parsing the arguments and allows you to pass your own arguments to Python.

Why is windows not passing command line arguments to Python?

When I use just the app name ( app.py args) Windows opens app.py in Python, but the app fails when it tries to access argv [1], because len (argv) is 1. Apparently Windows knows enough to pass a py file to Python, but I can’t figure out from looking at registry entries how it constructs the command.

How to forward arguments to a python script?

Let’s say we have a Python script my_script.py that does some data processing with Blender. This script accepts some arguments (e.g. arg1 arg2 ). How can I forward arguments to the script when using it with the CLI? The only trick I could find was this one: Is this really the only way to do that? I found a similar question on Stack Overflow.