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  1. Python
  2. Debug Python code

Debug Python code

Last modified: 07 September 2023

Starting a debugger session is very similar to running the program in normal mode. The debugger is attached behind the scenes, so you don't have to configure anything specific to start a debugger session. If you are able to run your program from DataSpell, you will also be able to debug it using the same configuration.

Pause/Resume a debugger session

When the debugger session is running, you can pause/resume it as required using the buttons on the toolbar of the Debug tool window:

  • To pause a debugger session, click the Pause button.

  • To resume a debugger session, click the Resume button F9.

note

Pausing the program manually is not an alternative to using breakpoints as this method doesn't let you use the full range of debugger functionality. For example, you cannot evaluate expressions after pausing the program.

Terminate a debugger session

  • Click the Stop button in the Debug tool window. Alternatively, press CtrlF2 and select the process to terminate (if there are two or more of them).

Productivity tips

Debug non-responding applications

In case your application hung, pause the session to let the debugger get the information about its current state. You can then examine the program state and locate the cause of the problem.

Do more with pause

When you need to evaluate an expression, and DataSpell doesn't let you do that because you didn't stop at a breakpoint, you can advance your program a line further by stepping. After this, you will be able to use the debugger as if you had stopped at a breakpoint. While in some cases this may not be a valid solution, it may sometimes help you out.