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1. pip install pyfits  (3.3)
2. pip install pywcs (1.12)
3. pip install APLpy (0.9.14)
4. 4Suite-XML 1.0.2, using the tarball available and then run: python setup.py install

5. pywcsgrid2-0.1b2 tarball should be within  our GLAST_EXT area
   extract

   cd

   python setup.py install

6. pip install healpy (1.8.4)

2.7.6-gl2

redhat6-x86_64bit-gcc44

1. Obtain python source from python.org
2. Ungzip/Untar source
3. Change directory to Python-2.7.6
4. Set the environment variable EXTRA_CFLAGS to "-fPIC -fwrapv"
5. Change directory to Python-2.7.2
6. edit setup.py, in detect_modules() change the lines from:
   add_dir_to_list(self.compiler.include_dirs, '/usr/local/include')
   add_dir_to_list(self.compiler.library_dirs, '/usr/local/lib')
   to:
   add_dir_to_list(self.compiler.include_dirs, '/usr/local/include')
   add_dir_to_list(self.compiler.library_dirs, '/usr/local/lib')
   add_dir_to_list(self.compiler.library_dirs, '/usr/lib')
   add_dir_to_list(self.compiler.include_dirs, '/usr/include')
   
   
7. setenv LDFLAGS -fPIC; setenv CPPFLAGS -fPIC; setenv CFLAGS  -m64 -fPIC need to force 64 bit build even on rhel6-64
8. Execute ./configure --prefix /afs/slac.stanford.edu/g/glast/ground/GLAST_EXT/redhat5-i386-32bit-gcc41/python/2.7.6
9. Execute make
10. Execute make install
11. Leave and erase the current directory (Python-2.7.6)

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