I'm trying to figure out how to do things with Python in Blender and am struggling really hard to get even the most basic things done. The construction of the override-parameter in my script below is probably not ideal but seems to work.

The files-arg is of course nonsense. As I understand it I would need to construct a bpy.types.bpy_prop_collection of bpy.types.OperatorFileListElement. But I have no clue how to initialize either of them.

import bpy

screen = bpy.context.window.screen

area   = [area for area in screen.areas if area.type == 'SEQUENCE_EDITOR'][0]
region = [region for region in area.regions if region.type == 'WINDOW'][0]

override = {'window': bpy.context.window, 
            'screen': screen, 
            'area': area, 
            'region': region, 
            'scene': bpy.context.scene}

bpy.ops.sequencer.image_strip_add(override, channel=3, files=("test",))

Don't use operators to do this; they aren't intended to be called from Python.

The regular data/function API is much simpler to use:

import bpy

se = bpy.context.scene.sequence_editor_create()
seq = se.sequences.new_image('hey', 'C:/temp/hey.png', 1, 1)

It turns out that the problem is just the documentation (it's really misleading). Working code is:

                                  files=({'name': "test"},))

The information what other keys the dict could have is possibly hidden somewhere in the docs. I haven't found it yet.

It seems to be a general concept in the Blender scripting api to "fish in collections". E.g. to create the override arg. But also if you want a reference to the object you just inserted you seem to need to fish in a collection. But maybe I just don't get it yet. (I hope so)

  • 2
    $\begingroup$ I know this doesn't answer your question, but for a start I would recommend using the up-to-date api documentation, here: blender.org/documentation/blender_python_api $\endgroup$ Apr 3 '17 at 17:41
  • $\begingroup$ Don't use operators for this. See my answer for a better approach. $\endgroup$
    – dr. Sybren
    Jun 10 '18 at 9:29

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.