python 提取關鍵字，並插入列表
import re
patt = re.compile(r'''
(?P<dt>\d{2}-\d{2})
\s
(?P<tm>\d{1,2}:\d{2}:\d{2}\.\d{3})
\s+
(\d+\s*)+
(?P<errorkey>\w)
\s
(?P<flag>\w+)
\s*
\:\s
(?P<content>.*)
''',re.I|re.U|re.X)
keyset = set()
with open("bug.log") as f:
for m in filter(None, map(patt.match, f)):
flagk = m.group('flag')
print m.group('flag')
keyset.add(flagk)
print ','.join(['"%s"'%k for k in keyset])