class diagram viewer application for python3 source

Question

Is there any application which can generate from python3 source something like the below link (i don't care about the representation rather the perfect content)

http://www.codeproject.com/KB/IP/Searcharoo_3/ClassDiagram.png

Pynsource is an open source project with free community edition: https://pynsource.com/ — Marc Compere, Jul 24 '21 at 01:53

Reblochon Masque · Accepted Answer · 2016-04-05T17:47:46.460

30

Yes there is: with pylint comes pyreverse that will generate class diagrams (not as pretty as the one in reference I am afraid, but clear and useful.) There is a dependency with graphviz.

From command line:

To analyse a full or part of a package

$ pyreverse -o png -p <project name>

To analyse one specific file:

$ pyreverse -o png -p myproject \path\to\myproject\myfile.py

Example output: Class Diagram

Example output: Packages

edited Apr 05 '16 at 17:47

answered Apr 05 '16 at 17:02

Reblochon Masque

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is it possible to give a specific file instead of ? – vpas Apr 05 '16 at 17:21
I think it is; `` refers to the folder/package containing a project, but this ought to work if replaced by a specific ``. I linked to the documentation in the answer. – Reblochon Masque Apr 05 '16 at 17:26
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thanks for the answer anyway... figured out what I need: pyreverse -o png -p myproject \path\to\myproject\myfile.py – vpas Apr 05 '16 at 17:41
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Great, thank you. I added this instruction to the answer. – Reblochon Masque Apr 05 '16 at 17:48
For me the command pyreverse -o png -p does nothing. Only when I specify filename – Nathan B Nov 17 '22 at 14:25

J Evans · Answer 2 · 2020-10-27T15:16:55.703

I found that the accepted answer violated the principle of least surprise :)

Given a current directory that contains python files as well as source in subdirectories, running pyreverse -o png -p py_test . meant Pylint picked up __init__.py and then went on to create a UML diagram of r:\apps\python3\lib\encodings\.

Using pyreverse -o png -p py_test ./main.py generated a blank PNG as no classes where defined within that source file.

However, pyreverse -o png -p py_subdir ./py_subdir did get some sensible results. It generated both class and package diagrams for all code in the subdirectory. Somewhat counter-intuitive.

what does py_test represent in this instance? – Hofbr Jun 25 '21 at 14:33 — Hofbr, Jun 25 '21 at 14:33

class diagram viewer application for python3 source

2 Answers2

From command line:

Example output: Class Diagram

Example output: Packages