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classification
Title: slice objects comparable, not hashable
Type: Stage:
Components: Interpreter Core Versions:
process
Status: closed Resolution: accepted
Dependencies: Superseder:
Assigned To: gvanrossum Nosy List: gvanrossum, robin900
Priority: normal Keywords: patch

Created on 2001年03月13日 21:04 by robin900, last changed 2022年04月10日 16:03 by admin. This issue is now closed.

Files
File name Uploaded Description Edit
slicediff robin900, 2001年03月13日 21:04
Messages (3)
msg36048 - (view) Author: Robin Thomas (robin900) Date: 2001年03月13日 21:04
This patch changes the behavior of slice objects in 
the following manner:
- Slice objects are now comparable with other slice 
objects as though they were logically tuples of 
(start,stop,step). The tuple is not created in the 
comparison function, but the comparison behavior is 
logically equivalent.
- Slice objects are not hashable. With the above 
change to being comparable, slice objects now cannot 
be used as keys in dictionaries.
I ask that this patch be considered a "bug fix", 
rather than a change in functionality, and thus be 
included in 2.1b2 and forward.
Other proposed changes to slicing and slice objects 
have been postponed until further discussion and the 
requisite PEP submission.
msg36049 - (view) Author: Guido van Rossum (gvanrossum) * (Python committer) Date: 2001年03月20日 12:42
Logged In: YES 
user_id=6380
Fix applied. Thanks!
(Isn't there a corresponding bug report that should be
closed?)
msg36050 - (view) Author: Robin Thomas (robin900) Date: 2001年03月20日 16:09
Logged In: YES 
user_id=127529
The "bug report" was just a post to the Python list. I'm 
not aware of a SourceFroge bug issue (although there might 
be).
History
Date User Action Args
2022年04月10日 16:03:51adminsetgithub: 34146
2001年03月13日 21:04:00robin900create

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