find users named 'wes' in your AD

active_directory_search.py

import clr

clr.AddReference('System.DirectoryServices')

from System.DirectoryServices import (
    DirectorySearcher,
    DirectoryEntry
)

filter = "(&(objectCategory=person)(objectClass=user)(givenName=wes*))"

search = DirectorySearcher(filter)

for result in search.FindAll():
    entry = result.GetDirectoryEntry()
    print "Name:", entry.Properties["givenName"].Value, entry.Properties["sn"].Value, \
      "Email:", entry.Properties["mail"].Value, "Phone:", entry.Properties["telephonenumber"].Value