It used to be that if you installed PyGTK-2 and PyGTK-0.x in a same version of Python, the applications that required PyGTK-0.x would stop working. This happened because Python would import PyGTK-2 preferentially, and the names of the modules are the same: 'gtk'.

(There are three different WAYS detailed to solve this problem, but I will not recommend methods 2 and 3 unless you are unable to upgrade to a version that supports method 1).

• Method 1 (the "pygtk.pth" method)

(Note that RedHat 8.0 ships versions PRIOR to these, you will need to either upgrade the system packages, or use method 2 if you want to install PyGTK-0 and PyGTK-2 together on RH8.)

James has added to pygtk a mechanism that allows installation of both pygtk and pygtk2 to work side by side. This method should be TRANSPARENT - you can install both versions and simply require one or the other for each program you need (the default being the one you install last), as per faq 2.4. It is implemented by using a pygtk.pth file that indicates which is the default (which one `import gtk' uses) version.

Note that pygtk.pth only works if you use the *default python install path* - if you specify a --prefix to configure it will not work and you will *have to use method 2*!

• Method 2 (PYTHONPATH):

You can install the two conflicting versions to a different prefix. When configuring pygtk2, use SOMETHING like:

 ./configure --prefix=/usr/local/gtk2/

All pygtk2 files will be installed in this case to

 /usr/local/gtk2/lib/pythonX.Y/site-packages/

With X.Y replaced by the MAJOR and minor numbers in your python version. You will then need to adjust PYTHONPATH (or sys.path) to look at the correct version for the program you want to run. If it requires pygtk2, you COULD use something like:

 export PYTHONPATH=/usr/local/gtk2/lib/pythonX.Y/site-packages/:$PYTHONPATH

It used to be that if you installed PyGTK-2 and PyGTK-0.x in a same version of Python, the applications that required PyGTK-0.x would stop working. This happened because Python would import PyGTK-2 preferentially, and the names of the modules are the same: 'gtk'.

(There are three different ways detailed to solve this problem, but I will not recommend methods 2 and 3 unless you are unable to upgrade to a version that supports method 1).

• Method 1 (the "pygtk.pth" method)

(Note that RedHat 8.0 ships versions PRIOR to these, you will need to either upgrade the system packages, or use method 2 if you want to install PyGTK-0 and PyGTK-2 together on RH8.)

James has added to pygtk a mechanism that allows installation of both pygtk and pygtk2 to work side by side. This method should be transparent - you can install both versions and simply require one or the other for each program you need (the default being the one you install last), as per faq 2.4. It is implemented by using a pygtk.pth file that indicates which is the default (which one `import gtk' uses) version.

Note that pygtk.pth only works if you use the *default python install path* - if you specify a --prefix to configure it will not work and you will *have to use method 2*!

You can install the two conflicting versions to a different prefix. When configuring pygtk2, use something like:

 ./configure --prefix=/usr/local/gtk2/

All pygtk2 files will be installed in this case to

 /usr/local/gtk2/lib/pythonX.Y/site-packages/

With X.Y replaced by the major and minor numbers in your python version. You will then need to adjust PYTHONPATH (or sys.path) to look at the correct version for the program you want to run. If it requires pygtk2, you could use something like:

 export PYTHONPATH=/usr/local/gtk2/lib/pythonX.Y/site-packages/:$PYTHONPATH