No ffmpeg exe could be found. Install ffmpeg on your system, or set the IMAGEIO_FFMPEG_EXE environment variable.

Table of Contents

Expected Behavior

not getting an error

Actual Behavior

getting the error in the title

Steps to Reproduce the Problem

be me and try to run from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip

ffmpeg is installed with apt and i can confirm its location in /usr/bin/. additionally ive also executed pip install imageio-ffmpeg in the python virtual environment and it is installed. ive logged platform.python_version() to confirm i was in the 3.8.0 venv.
executing a plain interpreter terminal in the venv and trying to import it manually does not resault in an error. only during execution. the execution is in a flask application deployed with gunicorn and nginx.

Specifications

Python Version: 3.8.0
Moviepy Version: the newest
Platform Name: Ubunto server
Platform Version: 18.04