What's New in Python 3.10

About error messages: There are quite a few questions on Stack Overflow where understanding the error message followed by a tiny bit of debugging would have found the problem. I always wonder whether such questions are the effect of people simply not understanding the error message. One would think that "'NoneType' object has no attribute 'foo'" would lead the asker to think "oh, my variable is None, now why did that happen, oh, bar() returns None if..." but they're stymied. Maybe the "NoneType" is confusing.

Similarly, there are questions where people claim to have been struggling (or watching YouTube videos!) for hours, while spending 30 seconds reading the manual for the function they are calling would have made it obvious that it does not do what they think it does.

I wonder whether the printing of tracebacks simple causes there to be too much text. I use some tools at work that spew out hundreds of lines when everything goes well, and thousands — most of them useless — when things go wrong. I always hate trying to hunt down errors in those, because I have not yet developed the skill to read them at a glance, so I need to look at all of it. I can read a Python traceback quickly, but a beginner probably can't.

Yes, I know that the versions are <Major Version Number>.<Minor Version Number>.

But could we please use leading zeroes in the Minor Version Number.

Version 3.8 comes before version 3.10, BUT if you must use numbers, please use numbers consistently. So version 3.08 not only comes before version 3.10, but it also looks like it comes before 3.10.