Calling HyperSpyUI when another instace is active.

[francisco-dlp]

Currently calling hyperspyui when an instance is active results in the following:

$ hyperspyui my_file.hdf5
QLocalSocket::connectToServer: Connection refused

Shouldn't it open the file in the current instance instead?

[vidartf]

Yes it should, the "Connection refused" error is relevant. Which version of Qt/PyQt/PySide are you using?

[vidartf]

(the relevant file to debug is single_application.py)

[francisco-dlp]

qt 4.8.7, pyqt 4.11.4

[vidartf]

That should not be a problem. Try increasing SingleApplicationWithMessaging._timeout and see if that changes anything.

[francisco-dlp]

Still refusing with 10000

[vidartf]

Do you see any log output from the existing instance?

[francisco-dlp]

This is all I get

ERROR:hyperspyui.singleapplication:QLocalSocket::connectToServer: Connection refused
DEBUG:hyperspyui.singleapplication:An existing instance of HyperSpyUI is running, sending arguments to it.

[vidartf]

PS, this uses a QLocalServer and a QLocalSocket to communicate from the secondary instance to the primary instance. Do you possibly have an interesting network config for localhost?

[vidartf]

This is all I get [...]

That should be the log output from the new instance of the UI. Is there anything from the existing instance (the one that is running the full UI)?

[francisco-dlp]

No, that one doesn't print anything to the log while attempting to connect.

There is nothing special about my localhost AFAICT.

[francisco-dlp]

It works for me in Windows.

[vidartf]

Could you download this file and run it from two different terminals? You will need to call it with an extra arg, e.g. python single_app.py test.

It should isolate the problem to a very minimal scenario.

[francisco-dlp]

I get Exiting early!

[vidartf]

When running the first one?

[francisco-dlp]

No, the first one is fine Loaded app