python 请求的正则表达式

Question

您好，我正在寻找一种解决方案来创建一个函数，该函数 returns 下一个结构的字典列表

示例：

example_dict = {"host":"146.204.224.152", 
               "user_name":"feest6811", 
               "time":"21/Jun/2019:15:45:24 -0700",
               "request":"POST /incentivize HTTP/1.1"}

数据如下所示：

146.204.224.152 - feest6811 [21/Jun/2019:15:45:24 -0700] "POST /incentivize HTTP/1.1" 302 4622
197.109.77.178 - kertzmann3129 [21/Jun/2019:15:45:25 -0700] "DELETE /virtual/solutions/target/web+services HTTP/2.0" 203 26554 
156.127.178.177 - okuneva5222 [21/Jun/2019:15:45:27 -0700] "DELETE /interactive/transparent/niches/revolutionize HTTP/1.1" 416 14701
*Keeps going more entries...*

我的函数如下所示：

import re
def logs():
    with open("assets/logdata.txt", "r") as file:
        logdata = file.read()
    pattern="""
(?P<host>.[\d.]*\s?)         #host
(?P<user_name>[\s\w-]*\s?)    #user_name
(?P<time>[\w\/\:\.\[\s-]*[\]\s])           #time
(?P<request>[\w\/\"\s.]*"?)     #request"""
    group=[]
    for item in re.finditer(pattern,logdata,re.VERBOSE):
        group.append(item.groupdict())
    return group    
    raise NotImplementedError()

并返回类似这样的内容：

[{'host': '146.204.224.152 ',
  'user_name': '- feest6811 ',
  'time': '[21/Jun/2019:15:45:24 -0700]',
  'request': ' "POST /incentivize HTTP/1.1" 302 4622\n197.109.77.178 '},
 {'host': '- ',
  'user_name': 'kertzmann3129 ',
  'time': '[21/Jun/2019:15:45:25 -0700]',
  'request': ' "DELETE /virtual/solutions/target/web'},
 {'host': '+',
  'user_name': 'services',
  'time': ' ',
  'request': 'HTTP/2.0" 203 26554\n156.127.178.177 '}]

我可以更改什么以解决此错误？

Answer 1

您可以尝试使用正则表达式。

(?P<host>[\d.]+)(?:\s*-\s*)(?P<user_name>\w+)(?:\s*\[)(?P<time>.*?)(?:\])(?:\s*)(?P<request>\".*?\")

Demo

Answer 2

试试这个：

    pattern="""
    (?P<host>\d{1,3}(?:\.\d{1,3}){3})\s-\s  #host (IPv4 only)
    (?P<user_name>[\s\w-]*?)\s?             #user_name
    \[(?P<time>[\w\/\:\.\s-]*)\]\s?         #time
    "(?P<request>.*?)"\s?                   #request
    (?P<code>\d{3})\s?                      #response code
    (?P<bytes>\d+)\s?                       #bytes sent or received
    """

https://regex101.com/r/l7N52c/1

python 请求的正则表达式

Regex for python request

regex

escaping

python-3.x