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

42%
+1 −2
Q&A Listen for key events in a CLI app

I have a Python program like this: done = False while u and not done: i = u.pop() print(f"Processing {i}") do_big_task(i) finish_up() Since this takes a long time, the user m...

1 answer  ·  posted 1y ago by matthewsnyder‭  ·  last activity 1y ago by mr Tsjolder‭

#2: Post edited by user avatar matthewsnyder‭ · 2023-09-07T16:34:28Z (about 1 year ago)
  • I have a Python program like this:
  • ```python
  • done = False
  • while u and not done:
  • i = u.pop()
  • print(f"Processing {i}")
  • do_big_task(i)
  • finish_up()
  • ```
  • Since this takes a long time, the user might get tired of waiting. I want the program to also continually listen for a keystroke, such as space, and if the user presses this `done` will be set to `True` so that the loop will automatically stop at the next iteration.
  • How can I do this?
  • I have a Python program like this:
  • ```python
  • done = False
  • while u and not done:
  • i = u.pop()
  • print(f"Processing {i}")
  • do_big_task(i)
  • finish_up()
  • ```
  • Since this takes a long time, the user might get tired of waiting. I want the program to also continually listen for a keystroke, such as space, and if the user presses this `done` will be set to `True` so that the loop will automatically stop at the next iteration.
  • Note that I still want `finish_up()` to run even if the loop is terminated early.
  • How can I do this?
#1: Initial revision by user avatar matthewsnyder‭ · 2023-09-06T02:01:32Z (about 1 year ago)
Listen for key events in a CLI app
I have a Python program like this:
```python
done = False
while u and not done:
    i = u.pop()
    print(f"Processing {i}")
    do_big_task(i)

finish_up()
```

Since this takes a long time, the user might get tired of waiting. I want the program to also continually listen for a keystroke, such as space, and if the user presses this `done` will be set to `True` so that the loop will automatically stop at the next iteration.

How can I do this?