Stop current Python REPL command, but keep REPL session open?

  • Python
  • Thread starter Swamp Thing
  • Start date
  • Tags
    Python
In summary, to stop the current command in a Python REPL session without closing the session, you can use keyboard shortcuts like Ctrl+C. This interrupts the execution of the current command, allowing you to continue using the REPL for further commands.
  • #1
Swamp Thing
Insights Author
962
667
If you just typed in a command into the Python repl, and it is stuck in a synchronous "waiting-for-something-to-happen", how can we terminate just that command and return to the same repl session?

For example, say we typed websocket.recv() and the websocket is waiting for a message... how can we end that and get back to the repl prompt without losing the whole session?
 
Technology news on Phys.org
  • #2
Try control-c it usually works as a keyboard interrupt.
 
  • Like
Likes PeterDonis and Swamp Thing

FAQ: Stop current Python REPL command, but keep REPL session open?

1. How can I stop the current command in the Python REPL without exiting the session?

You can stop the current command in the Python REPL by using the keyboard shortcut Ctrl + C. This will raise a KeyboardInterrupt exception, allowing you to regain control of the REPL without closing the session.

2. What happens when I press Ctrl + C in the Python REPL?

When you press Ctrl + C in the Python REPL, it raises a KeyboardInterrupt exception, which interrupts the current execution of code. This allows you to stop long-running processes or commands while keeping the REPL session active.

3. Is there any other way to interrupt a command in the Python REPL?

Besides Ctrl + C, you can also use the escape sequence Ctrl + Z on some systems to suspend the process. However, this may not work on all platforms or configurations, and it typically puts the process in the background rather than stopping it outright.

4. Will using Ctrl + C lose any unsaved work in the REPL?

No, using Ctrl + C will not lose any unsaved work. It simply interrupts the current command. You can continue to work in the REPL session after the interruption, and any previously defined variables or functions will still be available.

5. Can I use a try-except block to handle KeyboardInterrupt in the REPL?

Yes, you can use a try-except block to handle KeyboardInterrupt exceptions in the REPL. This allows you to define specific behavior when the interruption occurs, such as cleaning up resources or providing user feedback, while still keeping the REPL session open.

Similar threads

Python Custom exe to open Jupyter Notebook w/ single click? (Win10)
Replies
8
Views
2K
Python Understanding where pip saves the downloaded Python modules
Replies
16
Views
3K
Python How Can I Combine Slicing and Reversing to Determine Palindromes in Python?
2
Replies
55
Views
5K
Python Re: Python’s Sympy Module and the Cayley-Hamilton Theorem
Replies
3
Views
693
Iterators and generators and the data they generate
Replies
1
Views
1K
Python Create a sign-out sheet in Python
Replies
15
Views
2K
Python How to make an animation in SymPy using Python
Replies
4
Views
4K
Python Programming a recursive expected value card game
Replies
22
Views
4K
Python Maintaining Syntax Highlighting in Python IDLE
Replies
4
Views
2K
MCNP4C suppressing terminal/console window popping up?
Replies
3
Views
1K

Hot Threads

Recent Insights

Back
Top