help needed with python environment

I thought I would put a sim version of linuxcnc on a pc running ubuntu 13.04. I downloaded the source and compiled it fine. When I try to run, the program starts up ok so I get the menu options but when I choose one it terminates with an error that says it cannot find the pango library to import. Now I know this is certainly due to my strange setup. As they say a little knowledge is a dangerous thing and as far as python goes I have that little knowledge but am trying to improve

I started out with python 3.3.2 (latest is best!!) but discovered I should be looking at 2.7 for use with linuxcnc. So I have both versions and am running pyenv which allows a choice between versions of python. It stores different python versions in /home/alan/.pyenv/versions and I have both 2.7.5 and 3.3.2 installed. This is obviously not where the gtk libraries are installed so how do I point linuxcnc (or the python it uses) to where the libraries are? I have also downloaded compiled and installed the PyGtk source but this has not helped presumably because I didnt specify something correctly in the config file. So I need help to set everything up so that linuxcnc works with the version of python specified by pyenv and finds the pango library.

thanks
Alan

John,
I have done all that and checkbuilddeps returns no results as it should.
make and install and run I get

Starting LinuxCNC...
io started
halcmd loadusr io started
task pid=23423
emcTaskInit: using builtin interpreter
Traceback (most recent call last):
File "/home/alan/linuxcnc/bin/axis", line 3136, in <module>
get_coordinate_font(vars.dro_large_font.get())
File "/home/alan/linuxcnc/bin/axis", line 3033, in get_coordinate_font
glnav.use_pango_font(coordinate_font, 0, 128)
File "/home/alan/linuxcnc/lib/python/glnav.py", line 6, in use_pango_font
import pango, cairo, pangocairo
ImportError: No module named pango
Shutting down and cleaning up LinuxCNC...
Cleanup done

linux-debug reports

Can not find -sec MOT -var MOT -num 1
Can not find -sec IO -var IO -num 1
Can not find -sec LINUXCNC -var NML_FILE -num 1
Can not find -sec EMC -var NML_FILE -num 1
23363
PID TTY STAT TIME COMMAND
23423
PID TTY STAT TIME COMMAND
Stopping realtime threads
Unloading hal components

linux-print reports

RUN_IN_PLACE=yes
LINUXCNC_DIR=
LINUXCNC_BIN_DIR=/home/alan/linuxcnc/bin
LINUXCNC_TCL_DIR=/home/alan/linuxcnc/tcl
LINUXCNC_SCRIPT_DIR=
LINUXCNC_RTLIB_DIR=/home/alan/linuxcnc/rtlib
LINUXCNC_CONFIG_DIR=
LINUXCNC_LANG_DIR=/home/alan/linuxcnc/src/objects
INIVAR=inivar
HALCMD=halcmd
LINUXCNC_EMCSH=/usr/bin/wish8.4
INIFILE=/home/alan/linuxcnc/configs/sim/axis/axis_mm.ini
PARAMETER_FILE=sim_mm.var
TASK=milltask
HALUI=halui
DISPLAY=axis
Starting LinuxCNC server program: linuxcncsvr
Loading Real Time OS, RTAPI, and HAL_LIB modules
Starting LinuxCNC IO program: io
Starting HAL User Interface program: halui
Starting TASK program: milltask
Starting DISPLAY program: axis
Killing task linuxcncsvr, PID=23363
Killing task milltask, PID=23423
Removing HAL_LIB, RTAPI, and Real Time OS modules
Removing NML shared memory segments

Alan