Creating/Loading Script Files

[MysteryX]

I'm looking into converting an Avisynth AVSI file to VapourSynth.

I'm stuck at the very basics: importing a script file into another one.

import FrameRateConverter as frc
Python exception: No module named 'FrameRateConverter'

from . import FrameRateConverter as frc
Python exception: attempted relative import with no known parent package

How am I supposed to do it? And do I have to create utility files with .py extension, while the main VapourSynth script file itself is .vpy?

[MysteryX]

I found the sample scripts here
https://vsdb.top/

Obviously it will load if it's in the VapourSynth plugin folders. Does that mean I need to do all the development in the VapourSynth plugin folder?

Then for software like StaxRip coming with plugins bundled, how does it set to search in its own folder?

[Selur]

This is how Hybrid which uses a portable Vapoursynth imports stuff:

# Imports
import os
import sys
import ctypes
# Loading Support Files
Dllref = ctypes.windll.LoadLibrary("I:/Hybrid/64bit/vsfilters/Support/libfftw3f-3.dll")
import vapoursynth as vs
core = vs.get_core()
# Import scripts folder
scriptPath = 'I:/Hybrid/64bit/vsscripts'
sys.path.append(os.path.abspath(scriptPath))
# Loading Plugins
core.std.LoadPlugin(path="I:/Hybrid/64bit/vsfilters/GrainFilter/AddGrain/AddGrain.dll")
core.std.LoadPlugin(path="I:/Hybrid/64bit/vsfilters/DenoiseFilter/NEO_FFT3DFilter/neo-fft3d.dll")
core.std.LoadPlugin(path="I:/Hybrid/64bit/vsfilters/DenoiseFilter/DFTTest/DFTTest.dll")
core.std.LoadPlugin(path="I:/Hybrid/64bit/vsfilters/Support/EEDI3.dll")
core.std.LoadPlugin(path="I:/Hybrid/64bit/vsfilters/ResizeFilter/nnedi3/vsznedi3.dll")
core.std.LoadPlugin(path="I:/Hybrid/64bit/vsfilters/Support/libmvtools.dll")
core.std.LoadPlugin(path="I:/Hybrid/64bit/vsfilters/Support/temporalsoften.dll")
core.std.LoadPlugin(path="I:/Hybrid/64bit/vsfilters/Support/scenechange.dll")
core.std.LoadPlugin(path="I:/Hybrid/64bit/vsfilters/Support/fmtconv.dll")
core.std.LoadPlugin(path="I:/Hybrid/64bit/vsfilters/SourceFilter/d2vSource/d2vsource.dll")
# Import scripts
import havsfunc


Cu Selur

[MysteryX]

I'm having issues loading .py script files. If I put them in the same folder, it doesn't recognize them. If I put it in the VapourSynth\plugins folder, it loads the DLLs but doesn't recognize the scripts either.

How do I get them to be found?

[MysteryX]

Installing the scripts via vsrepo does work, but that doesn't answer how to load scripts as I'm developing them, or how to load them from a set folder.

[poisondeathray]

By default they are imported from the python site-packages directory

eg.
import havsfunc

would automatically look in the site-packages directory for havsfunc.py


Selur has an example above of how to use a custom location

[Selur]

Through sys.path.append(os.path.abspath(scriptPath)) I tell Python to that 'scriptPath' is an additional path or for find scripts in side.
With 'import havsfunc' I tell it to search all the script paths for a file named havsfunc(.py) and load it under the name havsfunc, if I would use 'import havsfunc as havs' it would be available under 'havs'.
When using 'import havsfunc' I can access QTGMC through 'clip = havsfunc.QTGMC(...)'
So unless you use the one of the autoloading/importing folders from Python, this is the way it goes afailk. :)

Your
from . import FrameRateConverter as frc
should be

import os
import sys
# append current dir, the current script file resides in, to sys.path
sys.path.append(os.path.dirname(os.path.abspath(__file__)))
# import FrameRateConver script file under the name frc
import FrameRateConverter as frc

__file__ = current file
os.path.abspath(__file__)) = absolute path to current file
os.path.dirname(os.path.abspath(__file__))) = absolute path to the directory the current file resides in

Cu Selur

Ps.: I hope this helps a bit :)