An examples of a Python script I wrote for a project:
'''===============================
ClipLooper.py
The purpose of this script is to step through all 10 counties in the dataset and clip each of the 3 features (Water Bodies, Streams, City Limits) to the counties border.
Script Arguments:
0 - Input County FC
1 - Input Water Bodies FC
2 - Input Streams FC
3 - Input Cities FC
4 - Workspace
Rob Abbey
12/1/2013
GISC 2250, Mini Project C
ArcGIS ver. 10.1, Python ver. 2.7
=================================='''
import arcpy, os
from arcpy import env
# Get input parameters
countyFC = arcpy.GetParameterAsText(0)
waterFeatures = arcpy.GetParameterAsText(1)
streamFeatures = arcpy.GetParameterAsText(2)
cityFeatures = arcpy.GetParameterAsText(3)
# Sets workspace
env.workspace = arcpy.GetParameterAsText(4)
# Allows the output features to be overwritten
env.overwriteOutput = True
# Sets spatial reference (WGS_1984_UTM_Zone_14N)
sr = arcpy.SpatialReference(32614)
# Allows fields to be extracted from Counties Feature Class
rows = arcpy.SearchCursor(countyFC, "", "", "NAME; Shape", "")
# Iterates through each feature in Counties Feature Class
for row in rows:
# Sets the clip feature
feat = row.Shape
# Creates new feature dataset based on current county name
outputFDS = arcpy.CreateFeatureDataset_management(env.workspace,row.name,sr)
# Defines output feature class, prints message to console, runs clip tool
outputWater = str(outputFDS) + os.sep + row.name + "_" + str(waterFeatures)
arcpy.AddWarning ("Now creating feature class: %s" % outputWater)
arcpy.Clip_analysis(waterFeatures, feat, outputWater)
outputStreams = str(outputFDS) + os.sep + row.name + "_" + str(streamFeatures)
arcpy.AddWarning ("Now creating feature class: %s" % outputStreams)
arcpy.Clip_analysis(streamFeatures, feat, outputStreams)
outputCities = str(outputFDS) + os.sep + row.name + "_" + str(cityFeatures)
arcpy.AddWarning ("Now creating feature class: %s\n" % outputCities)
arcpy.Clip_analysis(cityFeatures, feat, outputCities)
