Manim: can't run python extract_scene.py example_scenes.py SquareToCircle -pl

[lkevinzc]

Greetings!
Could anyone help me with the implementation of manim?
The problem now I have is that when i run python extract_scene.py example_scenes.py SquareToCircle -pl, the Traceback tells me that:
File "extract_scene.py", line 143, in
main()
TypeError: main() missing 1 required positional argument: 'config'
Just like the screen-shot shows:

I use Python3.7.1, and the dependencies should be already installed.
Thanks in advance for your help!!

[eulertour]

Try running python -m manim example_scenes.py SquareToCircle -pl or python manim.py example_scenes.py SquareToCircle -pl.

[JohnAZoidberg]

So should extract_scene never be manually called?
Then the doc at https://manim.readthedocs.io/en/latest/getting_started/learning_by_example.html is outdated/wrong.

[harshitgarg22]

+1. Experienced the same error. Is it a fault in documentation?
It seems that the intention was to write python -m manim -h instead.