Deterimine version of MXD from Python?

Discussion created by billwie on Dec 20, 2012
Latest reply on May 31, 2013 by mvolz47
I'm using ArcGIS 10.0 and arcpy.mapping.ListLayers to iterate through the layers in a list of MXDs. my problem is that someon has saved a 10.1 mxd somewhere in the list of MXDs I'm working through. I'd be fine with just skipping that file, but how do I determine what version a MXD file is from Python?