[Python] Why graphviz does not work? 'dot' is not recognized as an internal or external...

I install graphviz on Windows with pip install.

Checked with pip show graphviz

Name: graphviz
Version: 0.20.3
Summary: Simple Python interface for Graphviz
Home-page: https://github.com/xflr6/graphviz
Author: Sebastian Bank
Author-email: sebastian.bank@uni-leipzig.de
License: MIT
Location: c:\applics\python 3.9\lib\site-packages
Requires:


If I try to run:

pydeps dusk_pizding/ --max-bacon=4


I got:

'dot' is not recognized as an internal or external command,
operable program or batch file.


Also, dot executable is not found in CMD:

dot -v

'dot' is not recognized as an internal or external command,
operable program or batch file.


In Gitbash, same not found:

dot -v
bash: dot: command not found


why?

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