Data Driven Pages

mxd = arcpy.mapping.MapDocument("CURRENT")

#Change "CURRENT"  to a path if not run in ArcMap.  Then list all the data frames

dfs = arcpy.mapping.ListDataFrames(mxd)



ddp = mxd.dataDrivenPages
parentDF = ddp.dataFrame

#Next step is to pan the other data frames to the extent of the parent data frame's extent.


for pageNum in range(1, ddp.pageCount + 1):

   for df in dfs:
      ddp.currentPageID = pageNum
      row = ddp.pageRow
      extent = row.Shape.extent
      if (df.name == parentDF.name) and (df.scale == parentDF.scale):
         df.panToExtent(extent)
   arcpy.mapping.ExportToPNG(mxd, r"C:\\Test_DDP\\" + str(pageNum) + ".png")