Help with python script for command line

hello guys, I’m extensively rendering animations with command line (also making separate files with compositing via command line = huge speed boost!)
I have an issue while loading .py files with needed settings

I usually copy-paste from the info window the commands I need, then change “bpy.context.scene” into “[my_scene_name_here].etc”.
The settings get recognized, but there are exceptions, and when they occur the .py file is read up to that line and the rest is ignored.

here is an example:[my_scene_name_here][I].file_format = ‘H264’
.format = ‘H264’[my_scene_name_here].use_lossless_output = True

[/I][/I]these three lines return error[I]s, respectively:

AttributeError: ‘Scene’ object has no attribute ‘file_format’
AttributeError: ‘Scene’ object has no attribute ‘format’
AttributeError: ‘Scene’ object has no attribute ‘use_lossless_output’
another example:[my_scene_name_here].color_mode = ‘RGB’
(obtained in the info window after clicking on the RGB button in output settings panel)
AttributeError: ‘Scene’ object has no attribute ‘color_mode’
but if I use[my_scene_name_here].render.image_settings.color_mode = ‘RGB’

it works as I want.
so where that “render.image_settings” comes from? How am i Supposed to know it has to be there if the info window doesn’t tell me? :frowning:

So, for most commands, the info window is my friend, but when I encounter an issue i can’t tell what command I should write, and python tooltips don’t help either.
Where can I found documentation for this? Or, what other method should i use?

(sorry for the long text & errors…)[‘Scene’].render.image_settings.file_format = “H264”[‘Scene’].render.ffmpeg.format = “H264”[‘Scene’].render.ffmpeg.use_lossless_output = True[‘Scene’].render.image_settings.color_mode = “RGB”

you can get these options by right clicking on the item / menu and going edit source:

    def draw(self, context):
        layout = self.layout

        rd = context.scene.render
        ffmpeg = rd.ffmpeg
"RENDER_MT_ffmpeg_presets", text="Presets")

        split = layout.split()
        split.prop(rd.ffmpeg, "format")
        if ffmpeg.format in {'AVI', 'QUICKTIME', 'MKV', 'OGG', 'MPEG4'}:
            split.prop(ffmpeg, "codec")
            if ffmpeg.codec == 'H264':
                row = layout.row()
                row.prop(ffmpeg, "use_lossless_output")
        elif rd.ffmpeg.format == 'H264':
            split.prop(ffmpeg, "use_lossless_output")

rd = context.scene.render… this you already know
ffmpeg = rd.ffmpeg

this shows that ffmpeg is an option under bpy.context.scene.render.ffmpeg

if you want to test if your command works or not, use the python console and use the control-space hotkey for autocomplete / list available commands under the current tree… works a treat for exploration for the correct api function.

Found it!

console window, use autocomplete function (ctrl+space) and guess what you need.

Still i wonder why in the info window some commands are incomplete??!
Wouldn’t it just be easier if instead of
bpy.context.scene[I].color_mode = ‘RGB’
it was
render.image_settings.color_mode = ‘RGB’
what is the use of this abbreviated and not-working command?


thanks doublebishop, i found the solution while you answered “in the background”

hey thanks. I already am working with win batches. it’s a bless.
I don’t know much commands, but I think that the more I use it, the more i’ll look into a more complex use of it. Actually i learned last night about forwarding parameters into .py files and that might be very useful
import bpy
bpy.ops.import_scene.makehuman_mhx(filepath="~/Desktop/first_gen.mhx")blender --background --enable-autoexec --python
GIVES THE ERROR: Error when loading MHX file ~/Desktop/first_gen.mhx: Auto Run Python Scripts must be turned on. It is found under File > User Preferences > File Error: Not freed memory blocks: 4, total unfreed memory 0.000687 MB
I’ve installed blender on aws where I do not have access to the GUI to go tick the Auto Execution in File > User Preference > File . How do I do it from the command line ? --enable_autoexec does not seem to work. Are there other ways of setting UserPreferencesSystem.use_scripts_auto_execute to True ?