I am taking a look at the spreadsheet controller in /examples/spreadsheet 
in web2py Version 2.9.12 (on CentOS 6.6) .

The callback function is throwing this error.


Traceback (most recent call last):
  File "/var/www/web2py/gluon/restricted.py", line 224, in restricted
    exec ccode in environment
  File "/var/www/web2py/applications/examples/controllers/spreadsheet.py", 
line 12, in <module>
  File "/var/www/web2py/gluon/globals.py", line 393, in <lambda>
    self._caller = lambda f: f()
  File "/var/www/web2py/applications/examples/controllers/spreadsheet.py", 
line 4, in callback
    return cache.ram('sheet1', lambda: None, None).process(request)
AttributeError: 'NoneType' object has no attribute 'process'


I can't see other examples of code that call a ram.cache().process() 
method. Is this code using some defunct functionality?

I can see a lot of uses for this spreadsheet module and would be very happy 
to assist with getting it working out of the box.

Does anyone have a working example that they can point me to?

Chris

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