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Ask HN: Ideally, what features and changes would you want to see in Python 4.0?

• mtmail 2y ago
  Backward compatible with 3.x or a migration module which magically makes it compatible. The migration from 2.x to 3.0 was long and painful. I'd be fine if 3.x just continues (Perl is at 5.40 now).
• ashton314 2y ago
  Proper tail-call optimization! I know Guido doesn't like this, but proper TCO enables you to write elegant solutions to many problems, and I think that far outweighs a marginal improvement to ease of debugging. You can still debug TCO'd code just fine; a stack trace isn't your only tool.
• metadat 2y ago
  Support running in a pendantic mode requiring and enforcing type declarations. https://stackoverflow.com/questions/63838471/possible-to-enforce-type-hints https://stackoverflow.com/questions/63838471/possible-to-enf... Also, simplify the whole str / byte / utf-8 encoding decoding process. Python is the only language where these errors are so prevalent.
• deleted 2y ago
  [deleted]