How to take a screenshot in Sony Xperia Sola

Press and hold down the Power/Lock key and the sound DOWN key at the same time.

It's frustrating and in other models it's an option that appears when just holding down only the power key.

Python: error: Unable to find vcvarsall.bat

This error happens when you try to setup a new module but you don't have a C compiler installed on your system.
If you don't want to spend time and waste disk space installing a C compiler or if you don't how to install one, an easier solution would be to download a pre-compiled module from here

http://www.voidspace.org.uk/python/modules.shtml