fline = '#'+sys.argv[1]+'\n'
outfile = open(sys.argv[2], 'wb')
infile = open(sys.argv[3], 'rb')
-for l in filter(lambda l, fl=fline: l != fl, infile.readlines()):
+for l in [l for l in infile.readlines() if l != fline]:
outfile.write(l)
sys.exit(0)
""")