Many times while developing our projects we require a solution for checking whether the user system’s internet is on or off below are some simple solutions for checking that using Python.
Using httplib to check whether users internet is on or off
We imported http.client library. Initialized URL as www.geeksforgeeks.org We tried to establish a connection with the given URL. Requested only the header of Web Page for fast operations. True is returned if the connection is on and the message is displayed. An exception is caught if it’s not working and the error message is displayed.
Python3
# importing required moduleimport http.client as httplib# function to check internet connectivitydef checkInternetHttplib(url="www.geeksforgeeks.org", timeout=3): connection = httplib.HTTPConnection(url, timeout=timeout) try: # only header requested for fast operation connection.request("HEAD", "/") connection.close() # connection closed print("Internet On") return True except Exception as exep: print(exep) return FalsecheckInternetHttplib("www.geeksforgeeks.org", 3) |
Output:
Internet On
Using requests.get() to check whether users internet is on or off
Importing the required requests module. Initializing URL to geeksforgeeks.org. Initializing timeout to be 10. Requesting the given URL. Printing “Internet is on” or going to generate exceptions. Catching exception and printing “Internet is off”.
Python3
# importing requests moduleimport requests# initializing URLtimeout = 10try: # requesting URL request = requests.get(url, timeout=timeout) print("Internet is on")# catching exceptionexcept (requests.ConnectionError, requests.Timeout) as exception: print("Internet is off") |
Output:
Internet is off
Using socket module to check whether users internet is on or off
Import the socket module and try establishing the connection. Use the create_connection() method to establish the connection. Connect to the host and tell whether the host is actually reachable or not. Create_connection only connects to TCS sockets. If connection is established then return True otherwise return False.
Python3
import socketdef isConnect(): try: s = socket.create_connection( ("www.geeksforgeeks.org", 80)) if s is not None: s.close return True except OSError: pass return Falseprint(isConnect()) |
Output:
True
Using lambda function one-liner to check whether users internet is on or off
In this, we will import the os module within the lambda function and we ping using os module the default gateway IP of our network in our code here
For example, 192.168.0.1 is the gateway for My network
Note: (The gateway IP may be different than mine)
Python3
# codedef internet_on(): return (lambda a: True if 0 == a.system('ping 192.168.0.1 -n 3 -l 32 -w 3 > clear') else False)(__import__('os'))print(internet_on()) |
Output:
True
