I have found that these two statements don't raise any SyntaxErrors or exception
d = {}
d["a"]: 1
The suspect line is d["a"]: 1. At the very least, I would have expected a KeyError on "a". Furthermore, I can't figure out which compound statement (if any) this satisfies https://docs.python.org/3/reference/compound_stmts.html
If we change the statement to
d["a"]: print(1)
We see the "1" is printed. What behavior should be expected from this kind of colon use? Or, is this an irregularity with python?
Side Note: I'm not trying to use this line, it was discovered by accident. I'm just curious what is happening and why.
