I have been trying to build an objective C extension. I was able to add the OC template to xCode. I edit the manifeast file.
but when I get to the part: "Test your Project" I run into trouble.

python ./build.py 
  File "./build.py", line 89
    for dn in ('assets','documentation','example'):
                                                  ^
IndentationError: unindent does not match any outer indentation level

I am not really a pyton dev, so perhaps that has something to do with it? anyway, some assistance here would be nice.