Hi, I have installed web2py on ubantu. I am using python 2.7 on ubantu. I have created an application in web2py which has some pages including functionality of plotting graphs and display to front users.
For that I am using cairo and cairoplot modules/packages. They are successfully installed on ubantu machine. But still I am getting error as "<type 'exceptions.IOError'> error while writing to output stream" The exact error is in File "applications/app_name/modules/cairoplot1axis.py", line 154, in commit line 154 : self.surface.write_to_png(self.filename); I have tried to explore on google reagrding this issue and tried some ways/solutions but no luck. Does anybody know the exact solution for this issue ? Please let me know. Thanks, Nikhil. --

