Geany configuration help

[mlytle0]

I have just installed matplotlib and I can do the 'import matplotlib' command successfully under python3 in a terminal session. Under Geany, this comes back with an error 'No module named matplotlib'. I have even produced a simple plot in the terminal session, but can't get matplotlib to be recognized in the Geany environment, though normal Python commands execute perfectly under Geany. What could be wrong?

my code here