[Python-Dev] Proposal: Allow any mapping after ** in calls (original) (raw)
Alexander Belopolsky alexander.belopolsky at gmail.com
Fri Mar 23 20:45:51 CET 2007
- Previous message: [Python-Dev] Hindsight on Py_UNICODE_WIDE?
- Next message: [Python-Dev] Exceptions for readonly attributes
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Python allows arbitrary sequences after * in calls, but an expression following ** must be a (subclass of) dict. I believe * and ** should be treated similarly and since f(*UserList(..)) is valid, f(**UserDict(..)) should be valid as well.
Of course, I can work around this limitation by writing f(**dict(UserDict(..))), but this is unnatural given that I don't have to do f(*tuple(UserList(..))).
I have submitted a patch on SF that makes Python accept arbitrary mappings after **.
See <https://sourceforge.net/tracker/?func=detail&atid=305470&aid=1686487&group_id=5470>.
- Previous message: [Python-Dev] Hindsight on Py_UNICODE_WIDE?
- Next message: [Python-Dev] Exceptions for readonly attributes
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]