Re: [sumo-user] “Socket connection failed when I open the OSM WebWizard.

[sumo@xxxxx]

Valentino,

this alert appears IMHO in case that the JavaScript component of the web wizard page cannot connect to the socket server of the OSM web wizard. This most likely means that your osmWebWizard.py has crashed.

You did not provide any information about your Sumo version and operating system, but just for information I am also running both Python 2.7 and 3.6 in parallel and I have not had (this kind of) problems running the wizard on Sumo 0.31 and 0.32 on 64-bit Windows 7 and Windows 10 machine. For me the wizard seems to work in both major Python versions.

If you cannot directly see what went wrong, try to run the Python script explicitly from the command window/shell, e.g. in my case by running 

C:\Devel\Python27\python.exe C:\Devel\DLR\Sumo\tools\osmWebWizard.py

and look if the script throws an exception ...

-- jan