How to debug

[numbers1thru9]

Occasionally I will get an "Internal Error Has Occurred In The Application" but since it does not send the exceptions to the console or anywhere that I can see I cant find the error. The guide I didn't see any debugging instructions either. What is the best way to debug when these errors occur?

[wang0618]

adding debug=True to start_server() will enable traceback printing in pywebio popup when internal error occurred

[xuchunqiu]

I noticed the python bug traceback will always show in the Chrome DevTools console, which may leak some of my code to user. Already read:

• https://pywebio.readthedocs.io/zh_CN/latest/platform.html#websocket
• https://www.tornadoweb.org/en/stable/web.html#tornado.web.Application.settings

didn't find a suitable parameter can solve my problem. For now I just use sys.tracebacklimit = 0 in my code so only the exception type and value are printed in the Chrome DevTools console.

It‘s most likely not a problem with pywebio. Unfortunately My front-end knowledge is very limited, I was wandering if you can have some insights about this?

[wang0618]

@xuchunqiu You are right, I will add a update to disable console traceback log as default.

[wang0618]

@xuchunqiu fixed in 5242db7 , it's now avaliable in dev version and will be included in next stable release

[xuchunqiu]

Awesome! Thanks a lot!