@Nick.sipes not enough information to help. The Dynamo 2.0 installer installs the same version of ironPython as 1.3. but it also installed some missing dependencies into the dynamo core 2.0 folder, it shouldn’t have modified your existing 1.3.2 installer it’s possible it corrupted your python install though.
Maybe try repairing the ironPython installation under control panel.
What is the actual error you get?