Print out actual exception when import fails. Python 2.5 compatible

pyfpdb/GuiGraphViewer.py

@@ -33,7 +33,7 @@ try:
     from matplotlib.backends.backend_gtkagg import NavigationToolbar2GTKAgg as NavigationToolbar
     from numpy import arange, cumsum
     from pylab import *
-except ImportError as inst:
+except ImportError, inst:
     print """Failed to load libs for graphing, graphing will not function. Please in
                  stall numpy and matplotlib if you want to use graphs."""
     print """This is of no consequence for other parts of the program, e.g. import 

pyfpdb/GuiSessionViewer.py

@@ -37,7 +37,7 @@ try:
 #    from matplotlib.dates import  DateFormatter, WeekdayLocator, HourLocator, \
 #     DayLocator, MONDAY, timezone
 
-except ImportError as inst:
+except ImportError, inst:
     print """Failed to load numpy in Session Viewer"""
     print """This is of no consequence as the page is broken and only of interest to developers."""
     print "ImportError: %s" % inst.args