PythonParametersScript.py

# 1.	Import modules:

import arcpy
from arcpy import env
import os

# 2.	Set Parameters:

env.workspace = arcpy.GetParameterAsText(0)
option = arcpy.GetParameterAsText(1)
outputFilePath = arcpy.GetParameterAsText(2)

# 3.	List of options as listed in the parameters:

dsList = []

if option == "List Feature Classes":
    featureclasses = arcpy.ListFeatureClasses()
    for fc in featureclasses:
        dsList.append(fc)
elif option == "List Tables":
    tables = arcpy.ListTables()
    for tables in table: 
        dsList.append(table)
elif option == "List Rasters":
    rasters = arcpy.ListRasters()
    for raster in rasters:
        dsList.append(raster)
elif option == "List Workspaces":
    workspaces = arcpy.ListWorkspaces()
    for workspace in workspaces:
        dsList.append(workspace) 
elif option == "List Files":
    files = arcpy.ListFiles()
    for fl in files:
        dsList.append(fl)

# 4.	Write to outputFile (as a csv) and close

f = open(outputFilePath, 'w') 
f.write("ID,OBJECT")
i = 1

for item in dsList:
    f.write("\n" + str(i) +"," + item) 
    i += 1
f.close()