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Deprecations via warnings don't work for Python libraries

(sethmlarson.dev)
45 points scolby33 | 1 comments | 08 Dec 25 18:13 UTC | HN request time: 0s | source
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theamk ◴[08 Dec 25 18:24 UTC] No.46195792[source]▶
Deprecations via warnings don't reliably work anywhere, in general.

If you are a good developer, you'll have extensive unit test coverage and CI. You never see the unit test output (unless they fail) - so warnings go unnoticed.

If you are a bad developer, you have no idea what you are doing and you ignore all warnings unless program crashes.

replies(8): >>46196064 #>>46197215 #>>46203939 #>>46220846 #>>46221176 #>>46221435 #>>46221650 #>>46221723 #
1. wang_li ◴[10 Dec 25 18:45 UTC] No.46221723[source]▶
That's why you, very early on, release code that slows the API down once it has been deprecated. Every place you issue a deprecation warning, you also sleep 60. Problem solved.