import re
file=r'''5.10.80.69 - - [21/Jun/2019:15:46:20 -0700] "PATCH /niches/back-end HTTP/2.0" 406 15834
11.57.203.39 - carroll8889 [21/Jun/2019:15:46:21 -0700] "HEAD /visionary/cultivate HTTP/1.1" 404 15391
124.137.187.175 - - [21/Jun/2019:15:46:22 -0700] "DELETE /expedite/exploit/cultivate/web-enabled HTTP/1.0" 403 2606
203.36.55.39 - collins6322 [21/Jun/2019:15:46:23 -0700] "PATCH /efficient/productize/disintermediate HTTP/1.1" 504 13377
175.5.52.40 - - [21/Jun/2019:15:46:24 -0700] "POST /real-time HTTP/1.1" 200 2660
232.220.131.214 - - [21/Jun/2019:15:46:25 -0700] "GET /wireless/matrix/synergistic/expedite HTTP/1.1" 205 15081'''
pattern = re.compile(r'''^(?P<host>\S+) +\S+ +(?P<user>\S+) +\[(?P<time>[\w:/]+ +[+-]\d{4})] +"(?P<request>\S+) +(?P<status>\S+) +(?P<size>\S+)" +(?P<someid>\d{3}|-) +(?P<someid2>\d+|-)(?: +"(?P<referrer>[^"]*)"(?: +"(?P<agent>[^"]*)")?)?$''')

log_data = []

for line in file.splitlines():
  m = pattern.search(line.strip())
  if m:
    log_data.append(m.groupdict())

print(log_data)