将文本文件中的列写入python中的字典列表

Question

我有一个包含四列的文本文件： 时间 序列 域 服务器

文本文件内容如下：

15 14 google.com 8.8.8.8
19 45 google.com 8.8.4.4
98 76 google.com 208.67.222.222
20 23 intuit.com 8.8.8.8
45 89 intuit.com 8.8.4.4
43 21 intuit.com 208.67.222.222
78 14 google.com 8.8.8.8
92 76 google.com 8.8.4.4
64 54 google.com 208.67.222.222
91 18 intuit.com 8.8.8.8
93 74 intuit.com 8.8.4.4
65 59 intuit.com 208.67.222.222

读取此文件并创建字典列表的最佳方法如下：

[{"server":"8.8.8.8", 
  "domains":[{"google.com":[{"time":15, "serial":14}, {"time":78, "serial":14}]},
             {"intuit.com":[{"time":20, "serial":23}, {"time":91, "serial":18}]}
            ]
},
{"server":"8.8.4.4", 
 "domains":[{"google.com":[{"time":19, "serial":45}, {"time":92, "serial":76}]},
            {"intuit.com":[{"time":45, "serial":89}, {"time":93, "serial":74}]}
           ]
},
{"server":"206.67.222.222", 
 "domains":[{"google.com":[{"time":98, "serial":76}, {"time":64, "serial":54}]},
            {"intuit.com":[{"time":43, "serial":21}, {"time":65, "serial":59}]}
           ]
}]

行的顺序可以改变，但列始终保持不变。

Answer 1

也许不是最好的方法，但在某些方面是有益的：

servers = {}
file_path = './test.file'
from pprint import pprint
with open(file_path,'rb') as f:
    for line in f:
        _time, serial, domain, ip = line.split()
        current_domains = servers.get(ip, {})
        times = current_domains.get(domain, [])
        times.append({"time": _time, "serial": serial})
        current_domains[domain] = times
        servers[ip] = current_domains
pprint(servers)
pprint([{"server": ip, "domains": [{domain: _time} for domain, _time in domains.items()]} for ip, domains in servers.items()])

输出：

    {'208.67.222.222': {'google.com': [{'serial': '76', 'time': '98'},
                                   {'serial': '54', 'time': '64'}],
                    'intuit.com': [{'serial': '21', 'time': '43'},
                                   {'serial': '59', 'time': '65'}]},
 '8.8.4.4': {'google.com': [{'serial': '45', 'time': '19'},
                            {'serial': '76', 'time': '92'}],
             'intuit.com': [{'serial': '89', 'time': '45'},
                            {'serial': '74', 'time': '93'}]},
 '8.8.8.8': {'google.com': [{'serial': '14', 'time': '15'},
                            {'serial': '14', 'time': '78'}],
             'intuit.com': [{'serial': '23', 'time': '20'},
                            {'serial': '18', 'time': '91'}]}}

[{'domains': [{'intuit.com': [{'serial': '21', 'time': '43'},
                              {'serial': '59', 'time': '65'}]},
              {'google.com': [{'serial': '76', 'time': '98'},
                              {'serial': '54', 'time': '64'}]}],
  'server': '208.67.222.222'},
 {'domains': [{'intuit.com': [{'serial': '23', 'time': '20'},
                              {'serial': '18', 'time': '91'}]},
              {'google.com': [{'serial': '14', 'time': '15'},
                              {'serial': '14', 'time': '78'}]}],
  'server': '8.8.8.8'},
 {'domains': [{'intuit.com': [{'serial': '89', 'time': '45'},
                              {'serial': '74', 'time': '93'}]},
              {'google.com': [{'serial': '45', 'time': '19'},
                              {'serial': '76', 'time': '92'}]}],
  'server': '8.8.4.4'}]

好处是，轻松键入字典，只需循环一次即可创建插入。

唯一的缺点是它的格式不同，并且必须再循环 1 次才能这样做，但这仍然优于必须为插入的每一行遍历列表。