[Python-Dev] RFC: PEP 509: Add a private version to dict (original) (raw)

Victor Stinner victor.stinner at gmail.com
Fri Apr 15 17:19:10 EDT 2016

2016-04-15 23:07 GMT+02:00 Random832 <random832 at fastmail.com>:

Why is iterating over items different from iterating over keys?

in other words, why do I have to write: for k in dict: v = dict[k] ...do some stuff... dict[k] = something rather than for k, v in dict.items(): ...do some stuff... dict[k] = something It's not clear why the latter is something you want to prevent.

Hum, I think that you misunderstood what should be prevented. Please see https://bugs.python.org/issue19332

Sorry, I don't know well this issue. I just know that sadly the PEP 509 doesn't help to fix this issue. Maybe it's not worth to mention it...

Victor

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