Detect Changes between two XML files using Python

Question

I'm working on a project where I need to detect changes in two XML files, generated at different times.

The XML files contain airport data, runways, obstacles etc. so a lot of nested information, and only a fraction of the airports in the file are relevant.

I've tried the xmldiff module but it takes a long time to run and obviously returns information not relevant to the airports I'm interested in.

I've decided to write a python script to extract only the airports I need from the XML's, and store the data in two separate dictionaries, I will then compare them and try to identify the changes.

Could anyone advise on whether this is the correct way to go about the problem? Any advice at all is much appreciated!

Thanks

Sure, why not? Implement it, test it and if it gets the thing done, you have written a useful application. — Thomas Weller
– Thomas Weller, Commented Apr 13, 2022 at 13:19

Stimmot · Accepted Answer · 2022-04-14 08:25:32Z

2

Extracting the airports and saving them in a data structure that you can compare feels like a good way to approach the problem to me. Depending on how you handle duplicates you could think about using dictionaries (one key - multiple values) or sets (no duplicates). Here is a pretty good explanation on how to compare the contents of two different sets.

edited Apr 14, 2022 at 8:25

answered Apr 13, 2022 at 13:16

Stimmot

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