[Rd] Robust, platform independent method to check for python

[Carlos J. Gil Bellosta]

Hello,

I have been unsuccessfully struggling for a programmatical method to
find out whether and where Python is installed.

The reason is that I am developing a package that depends on python.

On UNIX/UNIX-like systems I can quite safely assume that python is
directly callable via system if installed. 

My main problems is Windows, though...

Has anybody faced this problem before?

Best regards,

Carlos J. Gil Bellosta
http://www.datanalytics.com