Hi there,
reportlab sounds to me a bit too much for your purpose.
You can always reeinstall it manualy using easyinstall or pip.
https://pypi.python.org/pypi/reportlab/3.2.0
if you just want to put all your graphs into a pdf you can use
Matplotlibs own functionalities.
it is also possible to use matplotlib together with reportlab, so
don't worry!
starting with matplotlib is my advice.
when you reach the point where this is not enough you can use pdfrw
together with reportlab.
Please see for a minimal example in attached python demo.
Cheers and have Fun!
Johannes