Psutil: [Win10] psutil.net_connections return mixed object types (namedtuple and tuple)

Created on 21 May 2019 · 5Comments · Source: giampaolo/psutil

Platform

sys.getwindowsversion(major=6, minor=2, build=9200, platform=2, service_pack='')
'2.7.15 (v2.7.15:ca079a3ea3, Apr 30 2018, 16:30:26) [MSC v.1500 64 bit (AMD64)]'
Version: 5.6.2

Bug description
psutil.net_connections return mixed object types (namedtuple and tuple)
I think it should be return type with namedtuple instead of tuple,or mixed types.

print [sconn.raddr for sconn in sconn_list if sconn.raddr.port == 993 and sconn.status == 'ESTABLISHED']

import psutil

sconn_list = psutil.net_connections(kind='tcp')

print sconn_list[0].raddr.port
print [type(sconn.raddr) for sconn in sconn_list]
print [sconn.raddr for sconn in sconn_list if sconn.raddr.port == 993 and sconn.status == 'ESTABLISHED']

Test results

Traceback (most recent call last):
  File "C:/Users/Guodong/PycharmProjects/LinuxBashShellScriptForOps/functions/net/tcp/port/check-port-connection.py", line 33, in <module>
    print [sconn.raddr for sconn in sconn_list if sconn.raddr.port == 993 and sconn.status == 'ESTABLISHED']
AttributeError: 'tuple' object has no attribute 'port'

thanks.

bug windows

Source

DingGuodong

Most helpful comment

Hang on. =)
If you see a tuple instead of namedtuple then it's a bug.

giampaolo on 29 May 2019

❤1 👍1

All 5 comments

Besides， it can be fixed by using code as follows:

import psutil
from psutil._common import addr  # addr = namedtuple('addr', ['ip', 'port'])

sconn_list = psutil.net_connections(kind='tcp')

print sconn_list[0].raddr.port
print [sconn.raddr for sconn in sconn_list if
       isinstance(sconn.raddr, addr) and sconn.raddr.port == 993 and sconn.status == 'ESTABLISHED']

DingGuodong on 21 May 2019

Mmm... this is weird. I can't see anything in the code which justifies what you see. Could try try to debug with pdb or something?

giampaolo on 28 May 2019

I'm sorry to make you confused, Maybe that's normal. item in psutil.net_connections(kind='tcp') can be in two python object types(and ). You will see it when execute those codes.

import psutil

sconn_list = psutil.net_connections(kind='tcp')

for sconn in sconn_list:
    print(type(sconn.raddr))
    print(sconn)

After I double check it, I think it is my own mistake, It will return tuple only when 'sconn.status='LISTEN''
now I will close it.

Many thanks. ;)

DingGuodong on 29 May 2019

Hang on. =)
If you see a tuple instead of namedtuple then it's a bug.

giampaolo on 29 May 2019

❤1 👍1

:), OK, you are so nice that I very appreciate it.

I am using this code to avoid this issue.

new code:

my_sconn_list = [sconn for sconn in sconn_list if sconn.status == 'ESTABLISHED' and sconn.raddr.port == port]

old code:

from psutil._common import addr
my_sconn_list = [sconn for sconn in sconn_list if
                 isinstance(sconn.raddr,
                            addr) and sconn.raddr.port == port and sconn.status == 'ESTABLISHED']

__I think the location of sconn.status == 'ESTABLISHED' is key.__

Thanks~~~

DingGuodong on 29 May 2019

Was this page helpful?

0 / 5 - 0 ratings