Better (python) error messages in imported files

[GoogleCodeExporter]

1) What's the problem?
If file1.py imports file2.py and there's an error in file2.py, the error is 
shown as one at line X in file1.py (where X is in my case one after the import 
line in file1.py).


2) How can someone else reproduce it?
Install sincerity and prudence, create a new application, create a file1.py in 
/resources, create file2.py in /libraries with an error in it, and put "import 
file2" in file1.py. (And of course do the routing, etc).


3) What operating system and JVM version are you using?
Ubuntu 13.10, latest.


[Don't forget to set the release version and language below]

Original issue reported on code.google.com by [email protected] on 19 Jan 2014 at 3:47