Yes, a web-based solution is going to be better for some use cases. But if you have a load of sensitive data files to wrangle then a desktop app is hard to beat.
I don't think pypes is maintained anymore but I was quite stoked about it when it was released. Coroutine based flow-based-programming pushes some pleasant buttons of mine
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[ 24.9 ms ] story [ 1292 ms ] thread1. richer interface 2. lower latency 3. no need to share sensitive data with a third party
1 & 2 are less of an issue than they used to be, but 3 is still a major issue.
There's a reasonable place for both. Getting data and operating on it is a pretty fundamental need!
https://pyvideo.org/pycon-us-2011/pycon-2011--large-scale-da...