Exit pdb Interactive Mode from Jupyter Notebook

Question

Within pdb, I'm using the interact command to enter interactive mode (documentation).

This gives me an InteractiveConsole within pdb (which I need in order to do list comprehension).

From within a Jupyter Notebook, how do I leave interactive mode without exiting the debugger entirely?

This question is the exact same question but the solutions only work from the terminal.

ctrl+d from within Jupyter just adds a bookmark.
And quit() returns NameError: name 'quit' is not defined

I can do import sys; sys.exit(), but that exits the debugger entirely, meaning I have to start from scratch.

I filed a bug on the Python issue tracker asking to add a command to exit the PDB InteractiveConsole: bugs.python.org/issue41096 — Kerrick Staley
– Kerrick Staley, Commented Jun 24, 2020 at 18:02

Kerrick Staley · Accepted Answer · 2020-06-24 01:27:52Z

8

Here is a solution similar to triccare's which doesn't require Emacs.

Run this command on Linux:

echo '\x04' | xclip -selection clipboard

or this command on macOS:

echo '\x04' | pbcopy

and then paste into PDB interactive prompt in Jupyter and press enter.

How this works: This puts the ASCII character 0x04, "END OF TRANSMISSION", onto your clipboard. This character is a "control character" that signals that there is no more input, which causes the PDB interactive session to end.

answered Jun 24, 2020 at 1:27

Kerrick Staley

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2 Comments

zmccord Over a year ago

on my macOS, echo -e '\x04' | pbcopy. Thanks, though, this worked great.

Kerrick Staley Over a year ago

@zmccord I just tried this on macOS and it works with or without -e for me. Not sure what the difference between your system configuration and mine is.

Sabito · Accepted Answer · 2022-10-26 03:54:41Z

6

A platform-agnostic method to solve this is to use pandas (doesn't require the terminal or Emac) :

Run this in the interactive console itself:

from pandas.io.clipboard import copy; copy("\x04")

And then do ctrl+v to paste the 'end of transmittion charecter' and hit Enter.

edited Oct 26, 2022 at 3:54

answered Sep 24, 2020 at 5:47

Sabito

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Comments

triccare · Accepted Answer · 2018-07-27 16:55:19Z

The only way I have been success is to copy/paste the Crtl-D character from another source. I use Emacs, so this is fairly easy, but any text editor that allows you to insert a Crtl-D into the document should work. Once inserted, use the standard copy/paste into the pdb interact field and hit or . This should get you out.

For Emacs, the long way is as follows, for demonstration purposes:

M-x insert char <RET> END OF TRANSMISSION <RET>

At this point you should see ^D in the buffer. At this point select the character and M-w or kill-ring-save to put it on the clipboard.

Then, change to the browser and make the interactive field active, and paste the character back. You will not see anything. Then hit . This should/might get you out.

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