If you are a newbie, you should learn Python 3.x instead of Python 2.x.
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import re
thefile = open("ss100.txt", "r")
for line in thefile:
line = line.strip() # strip end-on-line
if re.match(r"h...g..", line) and len(line)==7:
print(line)
