I'm trying to create this script that will check the computer host name then search a master list for the value to return a corresponding value in the csv file. Then open another file and do a find an replace. I know this should be easy but haven't done so much in python before. Here is what I have so far...

masterlist.txt  (tab delimited)
Name                 UID
Bob-Smith.local      bobs
Carmen-Jackson.local carmenj
David-Kathman.local  davidk
Jenn-Roberts.local   jennr

Here is the script that I have created thus far

#GET CLIENT HOST NAME
import socket
host = socket.gethostname()
print host

#IMPORT MASTER DATA
import csv, sys
filename = "masterlist.txt"
reader = csv.reader(open(filename, "rU"))

#PRINT MASTER DATA
for row in reader:
  print row

#SEARCH ON HOSTNAME AND RETURN UID



#REPLACE VALUE IN FILE WITH UID
#import fileinput
#for line in fileinput.FileInput("filetoreplace",inplace=1):
#   line = line.replace("replacethistext","UID")
#   print line

Right now, it's just set to print the master list. I'm not sure if the list needs to be parsed and placed into a dictionary or what. I really need to figure out how to search the first field for the hostname and then return the field in the second column.

Thanks in advance for your help, Aaron