Debug Python code
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.
Press Ctrl + D (macOS) or Shift + F9 (Windows, Linux).
This will create a temporary run/debug configuration for you. After that, you can customize and save this temporary configuration if needed. This is the quickest way to debug your program without configuring the startup parameters.
Click the Debug icon (
) on the Python editor toolbar.
Pause/Resume a debugger session
When the debugger session is running, you can pause/resume it using the buttons on the toolbar of the Debug tool window:
To pause a debugger session, click
.To resume a debugger session, click
F9.
Terminate a debugger session
Click the Stop button in the Debug tool window.
Alternatively, press Ctrl+F2 and select the process to terminate (if there are two or more of them).
Productivity tips
- Debug non-responding applications
In case your application hangs, it may help to pause the session and let the debugger get the information about the application's current state. You can then use this information to locate the cause of the problem.
- Use Pause Program instead of breakpoints
If you used Pause Program instead of a breakpoint, some features, such as evaluate expression will be unavailable. However, you can work around this limitation by stepping a line further. After this, you will be able to use the debugger as if you had stopped at a breakpoint.