Weird Python Weirdness

Question

I made a code demonstrating and explaining the problem here:

https://code.sololearn.com/c0BU1ctxAZG4/?ref=app

Answer 1

I believe 1 == "hj" in "ahj" is internally changed to 1 == "hj" and "hj" in "ahj" which in turn evaluates to False and True which is False. By introducing parentheses, this change isn't done so it creates different results.

Answer 2

This is the official docs. Try googling "comparison chaining" or similar if you'd like more info.

https://docs.python.org/3.9/reference/expressions.html#comparisons

Answer 3

Russ ah, I see. Thank you.

Answer 4

Russ That’s interesting. Is there any documentation anywhere on this internal changing?