When tkinter is not installed and '%paste' is run, the user is now prompted to install it.
Initializes TryNext exception in CommandChainDispatcher with args/kwargs to present a message to the user with the traceback.
Fix issue #880 - initialize TryNext with args and kwargs.
Presents a message to the user along with the traceback prompting them to install tkinter.
Thanks, Matt. I think it would be good to also catch this exception in magic_paste (see here), and just print an error message instead of showing an unhelpful traceback.
Sounds good - and I'll also clean up the message. Still getting to grips with the codebase somewhat.
No worries - part of the idea behind quickfix bugs is to get new people into the code.
@MattCottingham: Have you had a chance to have another look at this? Don't worry if not.
@takluyver, afraid I haven't had a chance this week - but I will have more time this coming week. Though if somebody else would like to fix it don't let this block them :)
Catch clipboard exception in magic_paste and print error message
@takluyver, I've made a quick update to catch the exception in magic_paste. If an error message is provided, that is printed. Otherwise, if no other details are provided, a more generic message is printed.
In some ways I'd like to re-raise in magic_paste and handle the exception in the caller, but I realise that's not quite how TryNext is used across the project.
Any suggestions for improvement welcome!
That's great. Don't worry, we don't generally raise exceptions from magic_* functions.
I've made one tiny change, so the error is a little bit tidier (213b5ed), and merged it.