LLDB python script to catch exceptions when thrown

to use add the python script to ~/Library/lldb and add the .lldbinit into your home directory.

Then setup your exception break point in Xcode like this:

Based on Rob Mayoff's script : http://qwan.org/2013/06/18/how-to-snatch-the-error-code-from-the-trap-frame-in-xcode/