topic Re: Create flow chart from python script in Python Questions

Create flow chart from python script

ShareUser — Wed, 17 Sep 2025 17:56:48 GMT

Does anyone know if there is a way to generate flow chart (or flow diagram) of python scripts? I would like to use something that is supported by the modules available in ArcGIS Pro's Package manager so I don't break anything. In a perfect world, I'd be able to take existing scripts and either include them in a list to create a diagram from, or a directory of scripts, etc. I have a bunch of scripts I have created and being able to graphically see the logic/flow of potential options would be incredibly helpful to see what will happen where/when. I've been searching and reading for several days on this and trying to find a viable solution.

Re: Create flow chart from python script

DanPatterson — Wed, 17 Sep 2025 18:11:34 GMT

untested by me, but most recommended online

pyflowchart · PyPI

Re: Create flow chart from python script

HaydenWelch — Wed, 17 Sep 2025 19:51:56 GMT

Are you talking about making a flowchart in Python? Or making something similar to Model Builder's graphical programming? If it's the latter, you will need to create a new environment and include a package like Ryven unless you want to just implement all that yourself.

You can also create a toolbox and just use Model Builder with your own tool functions which isn't too difficult as long as you properly implement the wrapper object code

Re: Create flow chart from python script

TimDe_Troye — Wed, 17 Sep 2025 20:00:55 GMT

Thank you Dan - I did see multiple references to pyflowchart, but it's not in ArcGIS Pro's Package Manager as available options. I was thinking that loading something in to the cloned virtual environment that is not listed in the Package Manager would not be a good idea due to potential conflicts or messing up the cloned environment. Am I mistaken in that?

Re: Create flow chart from python script

TimDe_Troye — Wed, 17 Sep 2025 20:21:45 GMT

Hayden - what I'd like to do is generate a flow chart of one or more of my python scripts so I can visually see how the code flows and what functions are to be run in what order. I'd like to be able to regenerate the flow chart whenever I want, such as after doing major edits on a given script. I created a basic idea of it below...

Re: Create flow chart from python script

DanPatterson — Wed, 17 Sep 2025 20:33:50 GMT

make a clone of the arcgispro-py3 environment and pip install it there

Package Manager—ArcGIS Pro | Documentation

it is a long information filled link so read on

Re: Create flow chart from python script

HaydenWelch — Wed, 17 Sep 2025 22:07:19 GMT

You can probably use networkx which is in the standard acpy environment to build a graph, then visualize it using pyplot. You can also use the standard ast library to introspect your script and see all the relationships.

I've also just used requests to post runs with info to a database that I then inspect using external dataviz. That's useful if you want to log runs for a tool that's being used in production.