using pyinstaller

[irwincommap]

Hello forum,

I want to create an executable of my python code. But I´m running into an error when I run the executable.

My file "test.py" has the following content:

import numpy as np
from moviepy.editor import VideoFileClip, concatenate_videoclips

print("hello world")

When I run: "python test.py" in my console it generates an output and put "hello world" on my console. So far so great!

When I run the command: "pyinstaller --onefile test.py" it generates an executable in my dist directory. However, when I run the executable I get the following error:

AttributeError: module 'moviepy.audio.fx.all' has no attribute 'audio_fadein'
[10316] Failed to execute script testinstaller

Why I cannot run the executable while the code runs fine going through the python compiler?

I use:

Python 3.8.3
Pyinstaller 4.0 (I have tried 4.1 from github as well, but I get the same results)

Thanks for helping me out in advance.

Greetings,

Irwin