运行时我的python脚本出错
['dc:9f:db:1a:60:62']
Traceback (most recent call last):
File "search.py", line 26, in <module>
user = matches[1]
TypeError: 'callable-iterator' object has no attribute '__getitem__'
我的脚本如下
import re
austins_mac_address = "f8:27:93:88:1c:95"
dd = {'f8:27:93:88:1c:95' : 'Austin iPhone',
'dc:9f:db:1a:60:64' : '4-Ops-AP',
'dc:9f:db:1a:60:62' : '4-TechOffices-AP',
'dc:9f:db:1a:61:b9' : '7-SalesReception-AP',
'dc:9f:db:1a:60:63' : '7-Marketing-AP',
'dc:9f:db:1a:61:bd' : '7-Sales-Engineers-AP',
'dc:9f:db:1a:60:f3' : '4-Dev-AP',
'dc:9f:db:1a:2c:dd' : '4-Hurricane-AP',
'24:a4:3c:02:cf:f6' : '6-Meeting-AP',
'dc:9f:db:1a:60:ef' : '4-Lounge-AP',
'dc:9f:db:1a:61:ba' : '7-QA-AP',
'dc:9f:db:1a:60:5f' : '4-TechFloor-AP',
'dc:9f:db:1a:2d:95' : '4-training1-AP'}
dat = '[2014-07-22 10:21:06,821] <inform_stat-3> WARN event - [event] User[e4:98:d6:27:4c:b6] roams from AP[dc:9f:db:1a:60:64] to AP[dc:9f:db:1a:2d:95] on "channel 11(ng)"'
aps = []
import re
for line in open("server.log"):
matches = re.finditer('(([0-9a-f]{2}[:-]){5}[0-9a-f]{2})', line)
if matches:
macAddrs = []
for match in matches:
macAddrs.append(match.group(0))
print(macAddrs)
user = matches[1]
if (user.equals(austins_mac_address)):
source = matches[3]
dest = matches[5]
答案 0 :(得分：1)
问题是matches是一个迭代器，因为那是re.finditer返回的。迭代器动态生成数据;它并非全部包含在数据结构中。这就是为什么你不能直接访问它的第二个元素。迭代器被设计为只循环一次（就像你在for match in matches那样），而不是随时访问随机元素。
如果您希望能够访问matches[1]等随机元素，则需要先遍历迭代器并将其所有数据存储在另一个列表中。
raw_matches = re.finditer('(([0-9a-f]{2}[:-]){5}[0-9a-f]{2})', line)
if raw_matches:
matches = []
for match in raw_matches:
matches.append(match)
类似的东西，假设第一个对象在生成第二个对象时没有被销毁。