How Do I get Packets from Locally hosted website on remote computer with pyshark

Question

I am trying to get packets from a website hosted locally on remote computer(Test purpose) using pyshark.

Here is my code:

import pyshark

def print_live_dns():
   capture = pyshark.LiveCapture("wlan0")
   for packet in capture:
      # print(packet)
      with open('packets.txt', 'a') as f:
         f.write(str(packet))
      if "DNS" in packet and not packet.dns.flags_response.int_value:
         print(packet.dns.qry_name)

if __name__ == "__main__":
    print_live_dns()

With this code I only get packets from the internet. which is not what I need. How do I achieve this? using either pyshark, scapy, nmap etc

Please provide excepted output and what you have tried so far. — Daweo, Jun 21 '20 at 12:15
Duplicates: https://stackoverflow.com/questions/49032032/finding-the-intersection-of-nested-lists-in-python, https://stackoverflow.com/questions/3852780/python-intersection-of-multiple-lists — RoadRunner, Jun 21 '20 at 12:22
Does this answer your question? [Finding the intersection of nested lists in Python?](https://stackoverflow.com/questions/49032032/finding-the-intersection-of-nested-lists-in-python) — Tibebes. M, Jun 21 '20 at 12:24

kundan · Accepted Answer · 2020-06-21T12:21:23.027

6

You can use set intersection

>>> from functools import reduce
>>>
>>> my_list = [[2,3,5,6,7,8,9], [2,4,78,23,13,7], [3,2,5,98,23,1,34]]
>>> list(reduce(lambda x, y: set(x).intersection(set(y)), my_list))
[2]
>>>

edited Jun 21 '20 at 12:21

answered Jun 21 '20 at 12:17

kundan

1,278
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score 1 · Answer 2 · answered Jun 21 '20 at 12:19

1

from functools import reduce

my_list = [[2,3,5,6,7,8,9], [2,4,78,23,13,56,7], [3,2,5,98,23,1,34]]

print(reduce(set.intersection, map(set, my_list)))

answered Jun 21 '20 at 12:19

Paul M.

10,481
2
9
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Roberto Caboni · Answer 3 · 2020-06-21T13:09:02.890

What you need is to generate a set from each sub-list and calculate their intersection (the set including just elements present in each set):

intersect = set(my_list[0]) & set(my_list[1]) & set(my_list[2])

Before printing the result we first convert it back to a list:

print( list(intersect) )

My example is tailored on your specific list, intersection operator & is used. My next step would have been the explanation of the general case (N sub-lists) with loops, but it has been perfectly covered by the other answers and it would be redundant.

score 0 · Answer 4 · answered Jun 21 '20 at 12:21

0

You can use sets

my_list = [[2,3,5,6,7,8,9], [2,4,78,23,13,56,7], [3,2,5,98,23,1,34]]
res = set(my_list[0])
for i in range(1, len(my_list)):
    res = res.intersection(set(my_list[i]))
print(list(res))

Output

[2]

answered Jun 21 '20 at 12:21

Leo Arad

4,452
2
6
17

Alexander Kosik · Answer 5 · 2020-06-21T12:43:15.147

0

from functools import reduce
my_list = [[2,3,5,56,7,8,9], [2,4,78,23,13,56,7], [3,2,5,98,23,1,34]]

# use the first list converted to a set as result, use *rest for iteration
result, *rest = map(set, my_list)
for sub in rest:
    result = result.intersection(sub)

print(result)

Another way of doing it is applying the & operation to converted sets:

import operator
list(reduce(operator.and_, map(set, l)))

edited Jun 21 '20 at 12:43

answered Jun 21 '20 at 12:34

Alexander Kosik

669
3
10

score 0 · Answer 6 · answered Jun 21 '20 at 12:36

0

you can use sets for this

 my_list = [[2,3,5,6,7,8,9], [2,4,78,23,13,56,7], [3,2,5,98,23,1,34]]
 first_tuple_list = [set(lst) for lst in my_list]
 print(first_tuple_list[0] & first_tuple_list[1] & first_tuple_list[2])

answered Jun 21 '20 at 12:36

NAGA RAJ S

452
4
12

How Do I get Packets from Locally hosted website on remote computer with pyshark

6 Answers6