Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »
Q&A

Welcome to Software Development on Codidact!

Will you help us build our independent community of developers helping developers? We're small and trying to grow. We welcome questions about all aspects of software development, from design to code to QA and more. Got questions? Got answers? Got code you'd like someone to review? Please join us.

Post History

71%
+3 −0
Q&A How do I get something similar to dictionary views, but for sequences?

The dictionary methods .keys(), .values(), and .items() all return view objects. Said objects reflect any changes to the underlying dictionary. This is often useful. Is there a way to get such a v...

1 answer  ·  posted 1y ago by ajv‭  ·  last activity 1y ago by r~~‭

Question python python-3
#2: Nominated for promotion by user avatar Alexei‭ · 2023-04-11T06:54:29Z (over 1 year ago)
#1: Initial revision by user avatar ajv‭ · 2023-04-10T00:42:33Z (over 1 year ago)
How do I get something similar to dictionary views, but for sequences?
The dictionary methods .keys(), .values(), and .items() all return view objects. Said objects reflect any changes to the underlying dictionary. This is often useful.

Is there a way to get such a view on sequences such as lists? For example, a slice-like object that, instead of copying part of a sequence, maps `__getitem__` / `__setitem__` to the sliced part of the original object? I think I could implement such a thing, but if there's already an appropriate builtin or common library, I'd rather use that.