"No suitable Python distribution found" when installing Planck likelihood code

[Noah Morris]

I am trying to follow along with the instructions here for installing the Planck 2013 likelihood code.

I myself have no trouble with my Python installation:

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$ which python
/usr/local/packages/python/2.7.3/gcc-4.3.2/bin/python

But when I try to execute the ./waf configure line in the instructions, it doesn't seem to feel the same way:

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Checking for program python              : /usr/local/packages/python/2.7.3/gcc-4.3.2/bin/python 
Checking for python version              : 2.7.3 
Checking for library python2.7 in LIBPATH_PYEMBED : not found 
Checking for library python2.7 in LIBDIR          : not found 
Checking for library python2.7 in python_LIBPL    : not found 
Checking for library python2.7 in $prefix/libs    : not found 
Checking for library python27 in LIBPATH_PYEMBED  : not found 
Checking for library python27 in LIBDIR           : not found 
Checking for library python27 in python_LIBPL     : not found 
Checking for library python27 in $prefix/libs     : not found 
Checking for program /usr/local/packages/python/2.7.3/gcc-4.3.2/bin/python-config,python2.7-config,python-config-2.7,python2.7m-config : /usr/local/packages/python/2.7.3/gcc-4.3.2/bin/python-config 
No suitable python distribution found 
Cause : 'Execution failure: [Errno 13] Permission denied' 

Is it obvious to anyone what my problem is here?