How to view system network traffic information in python
Preface
Traffic information can be viewed directly in /proc/net/dev. The program implemented by the author uses the command:
python net.py interface
interface is the name of the network card, what network card to use, what network cards the computer has, you can use
sudo ifconfig
Check it out.
The program implemented in Python is as follows:
# coding:utf-8
import sys, time, os
'''
Inter-| Receive | Transmit
face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
lo: 28169 364 0 0 0 0 0 0 28169 364 0 0 0 0 0 0
wlan1: 7432984 6018 0 0 0 0 0 0 681381 6115 0 0 0 0 0 0
vmnet1: 0 0 0 0 0 0 0 0 0 56 0 0 0 0 0 0
vmnet8: 0 0 0 0 0 0 0 0 0 55 0 0 0 0 0 0
eth0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
'''
_unit_=['B','KB','MB','GB','TB']
def get_net_data(interface):
for line in open('/proc/net/dev', 'r'):
if line.split(':')[0].find(interface)>=0:
return map(int, line.split(':')[1].split())
def convert_bytes_to_string(b):
cnt = 0
while b >= 1024.0:
b = float(b) / 1024.0
cnt += 1
return '%.2f%s'%(b,_unit_[cnt])
if __name__ == '__main__':
interface = sys.argv[1]
while True:
net_data = get_net_data(interface)
receive_data_bytes = net_data[0]
transmit_data_bytes = net_data[8]
os.system('clear')
print 'Interface:%s -> Receive Data: %s Transmit Data: %s'%(interface, convert_bytes_to_string(receive_data_bytes), convert_bytes_to_string(transmit_data_bytes))
time.sleep(1)The program entry is from if Starting from name=='main', first get the interface through the parameters, and then call the get_net_data() function to get the traffic information, followed by some data processing.
Summary
The above is the entire content of this article. I hope it will bring some help to everyone’s study or work. If so, If you have any questions, you can leave a message to communicate.
For more information on how to view system network traffic in python, please pay attention to the PHP Chinese website!
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