add list to another list

import os

def o0o00oo0() :
 if os.name == 'nt':
        os.system('cls')
        os.system('color a')
 else:
        os.system('clear')
o0o00oo0()
print '''
+------------------------------------+
+ By SoUiLaHxXx_Dz
+ HoMe : sec4Ever.Com & dz-rOOt.Com
+------------------------------------+
'''
o0o000o0 = raw_input("RealList > ")
oo0oo0 = raw_input("SecondList > ")
o000o00o0 = open(o0o000o0, "a")
oo0o00o0 = open(oo0oo0, "r")
for o00o in oo0o00o0:
  o00o = o00o.strip()
  o000o00o0.write("\n")
  o000o00o0.write(o00o)
o000o00o0.close()
oo0o00o0.close()
print "\n".strip()
print "Added..."
print "\n".strip()
raw_input("press any key To ExiT...")