[theamk]

Why wouldn't I want to mess with BaseExceptions? They are not magic, and add only 3 classes to the list:

SystemExit - You _definitely_ want to catch this one for logging. If a library (not top-level app) calls `sys.exit` you at least want to know what's happening, if anything so you can talk to author and get them to use proper exception types.

KeyboardInterrupt - I normally want to catch this one as well. If the program was taking too long and I hit Ctrl-C to stop it, I _do_ want to see all the debug output. And if I don't, for some reason, there is always Ctrl-\ which kills python immediately and unconditionally.

GeneratorExit - this one is tricky and I agree that in a lot of cases, you don't want to print logs on it. But it also very rare - it only appears in async functions (emitted by yield), and never propagated to caller. So as long as you are not doing async, you can simply ignore it, which covers majority of the the code I write.

[1st1]

Because accidentally masking some BaseExceptions like `asyncio.CancelledError` can lead to things like memory/resource leaks and potentially your production app going down in pretty hard to debug ways.

[theamk]

well, yeah, you don't want to mask any of those. Thats why all my examples talk about logging + re-raising.