When I do "rpm -e pygtk2-devel-2.13.0-3.fc11.x86_64" I get: error: Failed dependencies: pkgconfig(pygtk-2.0) is needed by (installed) gstreamer-python-0.10.12-2.fc11.x86_64 gstreamer-python should not depend on any -devel packages.
It looks like it also depends on gstreamer-devel. The complete list of -devel packages that get installed as a side effect: cairo-devel check-devel fontconfig-devel freetype-devel glib2-devel gstreamer-devel libpng-devel libX11-devel libXau-devel libxcb-devel libXdmcp-devel libxml2-devel libXrender-devel mesa-libGL-devel pixman-devel pycairo-devel pygobject2-devel pygtk2-devel python-devel xorg-x11-proto-devel zlib-devel
This is fixed as of gstreamer-python-0.10.13-1.fc11.x86_64.