My program is working up until the CalculateField, because you can see all the responses to script working. What am I missing in the calulate field script? See Below :
>>> import os.path
>>> os.path.basename ("C:\Users\Michelle\Desktop\GIS\FA_Urbans.shp")
>>> arcpy.AddField_management ("FA_Urbans", "POPSQMI","TEXT", "20")
>>> arcpy.CalculateField_management ("FA_Urbans","POPSQMI", "!SQMI!/!FID_1!","PYTHON"
See the dots it didn't like the calculate field. Every thing is working until then. The field is added and eveything but no calculation. I'm thinking it didn't like text.