Decoder For Base64

#!/usr/bin/python

##########################
#Base64 Decode by Saha #
# Quick 'N' Dirty, no BS #
##########################


# Required library
import base64


# Useless filler
filler = ''


# Open input file, too lazy to create args
fin = open("base64file.txt","r")


# Read contents of file (I know I know)
finvar = fin.read()


# Don't forget to close the file.
fin.close()


# Remove useless PHP code when decoding
rmrf_bs01 = finvar.replace('<?php eval("?>".base64_decode("','')
rmrf_bs02 = rmrf_bs01.replace('")); ?>','')


# Decode first round
var1 = base64.b64decode(rmrf_bs02)


# Remove more useless PHP code
rmrf_bs03 = var1.replace('<?php eval("?>".base64_decode("','')
rmrf_bs04 = rmrf_bs03.replace('")); ?>','')


# Decode second round
var2 = base64.b64decode(rmrf_bs04)


usr = raw_input('[?] Print to screen or file?\n[!] Write "screen" or "file": ')


if(usr == 'screen'):
    print var2
elif(usr == 'file'):
    print "[*] Printing to file: output.txt ..."
    fout = open('output.txt', 'w+')
    fout.write(var2)
    fout.close()
else:
    print "[*] You typed something else."