python - 使用正则表达式转换列表

Question

我有一个包含这种形式的元素的列表，字符串可能会改变但格式保持相似:

["Radio0","Tether0","Serial0/0","Eth0/0","Eth0/1","Eth1/0","Eth1/1","vlanX","modem0","modem1","modem2","modem3","modem6"]

我想将其转换为下面的列表。您可以看到它会删除相同出现的字符串的副本，例如 Eth - 在新列表中只出现一次并将数字转换为 x 和 y 以更通用:

["RadioX","TetherX","SerialX/Y","EthX/Y","vlanX","modemX"]

我在搞乱不同的正则表达式，我的方法很乱，会对你们想到的任何优雅的解决方案感兴趣。

这里有一些可以改进的代码，同时 set 不保留顺序，所以也应该改进:

a = ["Radio0","Tether0","Serial0/0","Eth0/0","Eth0/1","Eth0/2","Eth1/0","vlanX","modem0","modem1","modem2","modem3","modem6"]
c =[]
for i in a:
     b = re.split("[0-9]", i)
     if "/" in i:
         c.append(b[0]+"X/Y")
     elif len(b) > 1:
         c.append(b[0]+"X")
     else:
         c.append(b)
print set(c)

set(['modemX', 'TetherX', 'RadioX', 'vlanX', 'SerialX/Y', 'EthX/Y'])

为了保持顺序可能对集合进行的改进:

unique=[]
[unique.append(item) for item in c if item not in unique]
print unique

['RadioX', 'TetherX', 'SerialX/Y', 'EthX/Y', 'vlanX', 'modemX']

Answer 1

下面的代码应该足够通用以允许字符串中最多 3 个数字，但您可以简单地更改 repl 变量以允许更多。

import re

elements = ["Radio0","Tether0","Serial0/0","Eth0/0","Eth0/1","Eth1/0","Eth1/1","vlanX","modem0","modem1","modem2","modem3","modem6"]
repl = "XYZ"

for i in range(len(repl)):
    elements = [re.sub("[0-9]",repl[i], element, 1) for element in elements]

result = set(elements)