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cd /usr/local/src
sudo mkdir TARFILES
sudo chown -R dev .
$
cd TARFILES
$ wget http://python.org/ftp/python/2.7.3/Python-2.7.3.tgz
# ... $some stdout
cd ..
$
tar xvfz TARFILES/Python-2.7.3.tgz  $
cd Python-2.7.3
sudo yum $ ./configure --help
$ ./configure --rpe
$ makeinstall openssl-devel readline-devel ImageMagick sqllite-devel \
  bzip2-devel gdbm-devel ncurses-devel curses-devel
# ... Pythonlots buildof finished, but the necessary bits to build these modules were not found:
_curses            _curses_panel      _sqlite3        
_ssl               bsddb185           bz2             
dl                 gdbm               imageop         
readline           sunaudiodev                        
To find the necessary bits, look in setup.py in detect_modules() for the module's name.
...
$ sudo yum install openssl-devel readline-devel ImageMagick sqllite-devel \
  bzip2-devel gdbm-devel ncurses-devel curses-devel
...
# make yum stop complaining about incomplete transaction...
$ sudo yum install yum-utils
$ rpm -ql yum-i
$ sudo /usr/sbin/yum-complete-transaction
...
stdout
./configure --prefix=/usr/local/python27 --enable-shared --with-threads
make
sudo make install

# make sure it runs
/usr/local/python27/bin/python2.7

# Now, if you get errors about not being able to find libpython2.7.so.1.0,
# add this 
#    /usr/local/python27/lib
# to this file
#    /etc/ld.so.conf.d/python2.7.conf
# then run:
sudo /sbin/ldconfig

# again - make sure it runs
/usr/local/python27/bin/python2.7

# if you want to reinstall, you can simply remove the old install this way
rm -rf /usr/local/python27
# and the install it again
 

cd /usr/local/src/TARFILES
wget http://modwsgi.googlecode.com/files/mod_wsgi-3.3.tar.gz
cd ../
tar xvfz TARFILES/mod_wsgi-3.3.tar.gz
cd mod_wsgi-3.3
./configure --with-python=/usr/local/python27/bin/python
make
sudo make install

cd /usr/local/src/TARFILES/
wget http://www.psycopg.org/psycopg/tarballs/PSYCOPG-2-4/psycopg2-2.4.5.tar.gz
cd ../
tar xvfz TARFILES/psycopg2-2.4.5.tar.gz
cd psycopg2-2.4.5/
sudo /usr/local/python27/bin/python2.7 setup.py install
/usr/local/python27/bin/python2.7
# echo should be as follows
# Python 2.7.3 (default, May 16 2012, 09:40:25)
# [GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] on linux2
# Type "help", "copyright", "credits" or "license" for more information.

# check your work
# >>> import psycopg2
# >>> psycopg2.__version__
# stdout should be
# '2.4.5 (dt dec pq3 ext)' # 
# >>> exit()

# find and remove old proj libraries (?)
sudo find / -name "*proj*"
sudo find / -name "*proj*" | grep -v eas_ | grep -v Python-2 | grep -v usr\/local\/src | grep -v \.gz | grep -v django
# etc
cd /usr/local/lib
ls -l
sudo rm libproj.so.0.6.6
#
cd /usr/local/src/TARFILES
wget ftp://ftp.remotesensing.org/proj/proj-4.8.0.tar.gz
wget ftp://ftp.remotesensing.org/proj/proj-datumgrid-1.5.tar.gz
cd ../
tar xvfz TARFILES/proj-4.8.0.tar.gz
cd proj-4.8.0/nad
tar xvfz ../../TARFILES/proj-datumgrid-1.5.tar.gz
cd ..
./configure
make
sudo make install

# find old geos programs and libs and remove them
# do this iteratively with care
sudo find / -type f -name "*geos*" | grep -v src | grep -v geosilk | grep -v \.py
sudo find / -type f -name "*geos*" | grep -v src | grep -v geosilk | grep -v \.py | sudo xargs rm

# install new geos
cd /usr/local/src/TARFILES
wget http://download.osgeo.org/geos/geos-3.3.3.tar.bz2
cd ..
tar xvfj TARFILES/geos-3.3.3.tar.bz2
cd geos-3.3.3
# no python bindings
./configure
make
sudo make install

# find old gdal and remove
sudo rm -rf /usr/local/share/gdal/
# inspect output of this find...
sudo find / -name "*gdal*" | grep -v 'src\|python2.5'
# then pipe to xargs rm
sudo find / -name "*gdal*" | grep -v 'src\|python2.5' | sudo xargs rm
#
cd /usr/local/src/TARFILES
wget http://download.osgeo.org/gdal/gdal-1.9.0.tar.gz
cd ../
tar xvfz TARFILES/gdal-1.9.0.tar.gz
cd gdal-1.9.0/
# set your PATH properly so we get the right version of python
export PATH=/usr/local/python27/bin:$PATH
./configure --with-python
make
sudo PATH=/usr/local/python27/bin:$PATH make install

cd /usr/local/src/TARFILES
wget http://www.djangoproject.com/m/releases/1.3/Django-1.3.1.tar.gz
cd ../
tar xvfz TARFILES/Django-1.3.1.tar.gz
cd Django-1.3.1/
sudo /usr/local/python27/bin/python2.7 setup.py install

$ sudo ./set_eas_mode.sh SHOW_ENV

python version info:
2.7.3 (default, May 16 2012, 09:40:25) 
[GCC 4.1.2 20080704 (Red Hat 4.1.2-48)]

django version info:
(1, 3, 1, 'final', 0)

psycopg2 version info:
2.4.5 (dt dec pq3 ext)

mod_wsgi version info:
(3, 3)

gdal version info:
(1, 9, 0)

geos version info:
{'major': '3', 'subminor': '3', 'version': '3.3.3', 'capi_version': '1.7.4', 'release_candidate': None, 'minor': '3'}

sudo /sbin/ldconfig

$ wget http://python-distribute.org/distribute_setup.py
$ sudo /usr/local/python27/bin/python distribute_setup.py
$ wget https://raw.github.com/pypa/pip/master/contrib/get-pip.py
$ sudo /usr/local/python27/bin/python get-pip.py
$ sudo /usr/local/python27/bin/pip install virtualenv
$ sudo ln -s /usr/local/python27/bin/virtualenv /usr/local/bin/virtualenv-2.7 

$ mkdir virtualenvs
$ cd virtualenvs
$ virtualenv-2.7 --no-site-packages --python=/usr/local/python27/bin/python python27_paul
$ . ~/virtualenvs/python27_paul/bin/activate
(python27)$ deactivate
$ 

$ . ~/virtualenvs/python27/bin/activate
(python27_paul)$ cd /usr/local/src/gdal-1.8.1/
(python27_paul)$ ./configure --prefix=/home/usrdev/localvirtualenvs/python27
$ make clean
_paul
(python27_paul)$ make $ sudo&& make install