Okay, last few remarks then I am done for today, I need to sleep.



1. The sip installer in your script has the same idiotic problem I struggled with: it wants to put itself outside the virtualenv.  /System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7.  It asks for root password when it gets to that point, that's when I killed it...

2. As I only used this system for iOS development, and I only use python on linux boxes, I didn't really have any "extra" packages. Only wget was missing (in addition to swig), so it's good, no exotic dependencies.

3. the "cd sip-4.14.4.tar.gz" line must be replaced to "cd sip-4.14.4"