Hi everyone!

I recently started learning Python3 and wanted to give KDevelop a try. But as soon as I try to debug my code all I get is this error message:

Unsupported Interpreter - KDevelop
Sorry, debugging is only supported for Python 3.x applications.

First, I thought something is wrong with my code, so I deleted everything and just wrote:

Code: Select all

print("test")

But I got the same error. Maybe I screwed up my Kubuntu installation back some time, so I set up a virtualbox with Kubuntu 16.04 and the latest AppImage from the homepage, but again the same error.

I'm pretty sure it is a quite simple mistake I make, but I cannot figure it out. I hope someone can help me!

Try putting "python3" in the "interpreter" box in the launch configuration dialog. It's possible your distribution still has "/usr/bin/python" as python 2 by default.

It works now, thank you very much!

I just found the same issue using the 5.0.3 appimage, would't it make sense to add a python3 in the script interpreter list (it seems it will still take time until it's the default everywhere)? Shall I open a bug?

The list allows typing, so you can just type "python3". I think "python" is fine ... people with multiple versions can just add the "3", don't you think? Better than cluttering the list with "python2" "python3" "python" "ruby" "ruby2" "ruby2.2" "php" "php6" ...

Yes, might be, since I come from using another IDE (pycharm) I remember getting the same issue on the first install, in that case there was a choice of the two versions (defaulting to v2 too), since the UI was mentioning the python version I avoided having to search the web for a solution (not a big deal though)
Another option would be to add the version written between parenthesis so the user would notice the version he's using.

This is what I was offered on the other IDE

The stupid thing is that it's not even so trivial, I can't know whether on your system "python" is python2 or python3 without actually executing "python --version" and parsing the output, i.e. this requires adding program logic, not just changing the presentation. Fiddling that into this dialog in a way which also works for the other languages didn't seem worth it for me (although of course it's not super hard to do).

I see, well it's just a novice issue, overall I am enjoying the 5.0.3 a lot, thanks for your job

Hmm, as just noted on IRC, I think we can just change it to "python3". I'll do that for 5.1.

Oh, that would be great

scummos wrote:The list allows typing, so you can just type "python3". I think "python" is fine ... people with multiple versions can just add the "3", don't you think? Better than cluttering the list with "python2" "python3" "python" "ruby" "ruby2" "ruby2.2" "php" "php6" ...

No, I don't think that. It is unhelpful and unsupportive for unexperienced users. Following that line, why don't we drop the "launch app" icon, since a user can always type sth. into KRunner ...