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I was wondering if there was a python command that packs existing .blend files, without having to open them. For example having a folder full of 3d models with textures, videos , music, inside, I was wondering if we could all pack with a for loop without having to open 1x1 files.

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I simply ask if there is a python mode, through a for loop to access these .blend files already saved and in the case pack all the files inside them. I would just like to run this from a script on any project, even empty in the case.

If it does not exist, I also accept this answer, provided it is a correct answer.

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You can do it using Blender in the GUI-less mode:

  • create a new Python script like this one (I'll call it pack_GUIless.py):

    import bpy

    bpy.ops.file.pack_all()

  • open the Command Prompt (Windows) or Terminal (Linux) and run the command blender --b [path_to_file]/test_file.blend -P [path_to_script]/pack_GUIless.py. You might have to put the blender path as well if you have a portable version of Blender. More info here:https://docs.blender.org/manual/en/latest/advanced/command_line/arguments.html

This will open blender in the terminal and close it as soon as the files of the test_file.blend project are packed, so it will be fast and clean (no GUI loaded). If you need to do it do it many times you might want to create a .cmd script to make it easier, like this one I made for rendering purposes (so you edit the script with the path to the .blend file and run it, and it will do everything by himself).

Please mind that I didn't test this specific case, so you might have to tweak something

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    $\begingroup$ I find this alternative useful, but rather wondered if there is possibility via a script executable in blender via a classic python script $\endgroup$
    – Noob Cat
    Commented Oct 15, 2019 at 22:01
  • $\begingroup$ I'm not sure what you mean: do you want to pack the assets of a project in a script that is open in a different project, or do you want to do it from a classic python console not related to blender? The answer could be to use the GUI-less command I showed you in a python subprocess, I guess, but I'm not that clear on the question $\endgroup$
    – Tareyes
    Commented Oct 16, 2019 at 20:15
  • $\begingroup$ I want to pack multiple .blend files by python script like addon script through any project, even empty, I would like to understand only if there is an api that allows it in blender. $\endgroup$
    – Noob Cat
    Commented Oct 16, 2019 at 22:34
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    $\begingroup$ No, .blender is not made to access other .blend files easily, but again, use a python subprocess. I never used them myself, but it's basically a way to start another script/program from python while the original one is still running. This way you can open other GUI-less Blender instance in background that open the specific files you want and pack their assets, then close. They will take a few seconds to do it, but the best thing about subprocesses is that you can continue working in Blender without any problem $\endgroup$
    – Tareyes
    Commented Oct 17, 2019 at 6:34

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