Hello Mark,

which web2py version?
usually this error happens when you have a session created with a different 
version of web2py. Try clear everything in your apps sessions folder. Does 
it solve the problem?

On Tuesday, 6 March 2018 17:40:28 UTC-6, Mark Erbaugh wrote:
>
> I installed Web2py and Apache on a Raspberry Pi using the Ubuntu 
> installation script. That script generated a self-signed SSL certificate. 
>
> If I access the app using HTTP on port 80 and HTTPS on port 443, all is 
> fine. 
>
> This app is replacing a legacy app that needs to run HTTP on port 8080. I 
> reconfigured Apache's ports.conf to listen on 8080 and default.conf to have 
> a virtualhost on 8080. 
>
> The app works fine if I access it only via HTTP on port 8080 or HTTPS on 
> port 443, but if you try to access it from the other port (443 if the first 
> access after an Apache restart was on 8080 or 8080 if the first access was 
> on 443), I get an error ticket. Clicking on the error ticket just leads to 
> another ticket. 
>
> I copied the error file to another Web2py server and here's the traceback: 
>
> Traceback (most recent call last): 
>   File "/home/www-data/web2py/gluon/main.py", line 434, in wsgibase 
>     session.connect(request, response) 
>   File "/home/www-data/web2py/gluon/globals.py", line 1000, in connect 
>     session_pickled = pickle.dumps(self, pickle.HIGHEST_PROTOCOL) 
>   File "/home/www-data/web2py/gluon/storage.py", line 52, in <lambda> 
>     __getnewargs__ = lambda self: getattr(dict,self).__getnewargs__(self) 
> TypeError: getattr(): attribute name must be string 
>
> I think Web2py is having problems pickling the Session object.  I added a 
> diagnostic printout and when the pickle is failing the Session object 
> prints as Storage({}), which I assume is an empty object. However, working 
> with the diagnostic printout, I also see cases where an empty object 
> pickles just fine, just not ones generated when I switched ports.

-- 
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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