Edit feature class metadata programmatically (python)

Idea created by jakgis on Nov 12, 2014
    Reviewed
    Score100

    It would be nice to edit feature class metadata through python (automated).  For instance a quarterly update process would overwrite the current Summary or Purpose to incluce the text "Updated 3Q 2014."  Writing hardcoded text would be fine but there doesn't seem to be a tool or method to accomplish without manual intervention (in Desktop).