Python Script for Buffer and clip routine in Arcgis

[MehrajQureshi]

#Code For Clip and Buffer Feature Geoprocessing Script


#Created By : Mehraj Qureshi
#GIS Anslyst
# mehraj.quarish@gmial.com
#Date 13-7-2012
'''
This script will perform The ArcGIS clip and Buffer routine for a
specified  set of features
'''
import arcpy,sys,traceback # import  modules
arcpy.env.workspace = "D:\\PERSONAL\\P\\Pypr\\Chapter04\\Data\\"

#create Variable Declaration for Geoprocessing Function
outPath = "D:\\PERSONAL\\P\\Pypr\\Chapter04\\MyData\\"


inFeature ="City_Facilities.shp"
clipFeature = "Central_City_CommPlan.shp"
outfile = outPath+"City_Facilities_Clip.shp"
bufFeature = "D:\\PERSONAL\\P\\Pypr\\Chapter04\\MyData\\City_Facilities_Clip_buffer.shp"
try:
    if arcpy.Exists(outfile):
        arcpy.Delete_management(outfile) #delete  if the output already Exists
    print "Starting Clip routine"
    #parameters using variables
    arcpy.Clip_analysis(inFeature,clipFeature,outfile)
    print "Finished Clip Routine"

    if arcpy.Exists(bufFeature):    #delete  if the output already Exists
        arcpy.Delete_management(bufFeature)
    print "starting Buffer routine"
    #parameters using variables
    arcpy.Buffer_analysis(outfile, bufFeature, "100 FEET" ,"","")
    print "Finished Buffer Routine"
   
       

except:
    tb =sys.exc_info()[2]
    tbinfo =traceback.format_tb(tb) [0]
    pymsg ="python erros:\n" +tbinfo+ "\nError info:\n"
    msgs = "Arcpy Errors:\n" +arcpy.GetMessages(2) + "\n"
    #print error messages in the priocess Dialoge
    arcpy.AddError(msgs)
    arcpy.AddError(pymsg)
    #Print messges to python shell
    print msgs
    print pymsg
    arcpy.AddMessage(arcpy.GetMessages(1))
    print arcpy.GetMessages(1)

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