Python check if internet connection

Python check if internet is available

httpconnection class is not checking whether the website is using http or https, it returns true for both HTTP and HTTPS websites, so I have used the HTTPSConnection class. python check if internet is available python check internet connection Question: I’m working on an application that uses internet so I need to check if there is an internet connection at the load of the application so I use this function: Sometimes it fails although there is an internet connection

Python check if internet is available

import urllib.request def internet_on(): try: urllib.request.urlopen('http://216.58.192.142', timeout=2) return True except: return False

import urllib2 def internet_on(): try: urllib2.urlopen('http://216.58.192.142', timeout=1) return True except urllib2.URLError as err: return False

Test if an internet connection is present in python, My approach would be something like this: import socket REMOTE_SERVER = «one.one.one.one» def is_connected(hostname): try: # see if we can

Create a Website Connectivity Checker CLI in Python

This is a step-by-step project for building a site connectivity checker in Python. It is an Duration: 31:56

How to check internet connection using python

Source Code — https://github.com/vfxpipeline/Python-InternetThanks for watching.Do not forget Duration: 7:07

Python Tutorial: Write a Script to Monitor a Website, Send

In this Python Programming Tutorial, we’re going to be looking at a real-world example of Duration: 45:59

Checking internet connection with Python

I’m working on an application that uses internet so I need to check if there is an internet connection at the load of the application so I use this function:

def is_connected(): try: print "checking internet connection.." host = socket.gethostbyname("www.google.com") s = socket.create_connection((host, 80), 2) s.close() print 'internet on.' return True except Exception,e: print e print "internet off." return False 

Sometimes it fails although there is an internet connection, it says ‘timed out’. I also tried using urllib2 to send a request to Google but it took time and timed out too. Is there a better way to do it? I’m using Windows 7 and Python 2.6.6.

you should do something like

def check_internet(): for timeout in [1,5,10,15]: try: print "checking internet connection.." socket.setdefaulttimeout(timeout) host = socket.gethostbyname("www.google.com") s = socket.create_connection((host, 80), 2) s.close() print 'internet on.' return True except Exception,e: print e print "internet off." return False 

or even better (mostly taken from other answer linked in comments)

def internet_on(): for timeout in [1,5,10,15]: try: response=urllib2.urlopen('http://google.com',timeout=timeout) return True except urllib2.URLError as err: pass return False 

You can also use another Library to do it. If you’re pulling in any content I would highly suggest using Requests.

Joran has a great answer, it definitely works. Another approach is:

def checkNet(): import requests try: response = requests.get("http://www.google.com") print "response code: " + response.status_code except requests.ConnectionError: print "Could not connect" 

The benefit is you can use the response object and just continue on with your work (response.text etc..)

It’s always faster to try it and handle the error if it breaks than do needless checks repeatedly.

I would suggest you to use urllib. Is a pre-installed library and you don’t need to install extra library. That’s my propose:

def isConnected(): import urllib from urllib import request try: urllib.request.urlopen('http://google.com') # If you want you can add the timeout parameter to filter slower connections. i.e. urllib.request.urlopen('http://google.com', timeout=5) return True except: return False 

Bro this is ez, Do this: Make a Def function and put this in it

try: print ("checking internet connection..") host = socket.gethostbyname("www.google.com") s = socket.create_connection((host, 80), 2) s.close() print ('internet on.') return True except Exception: print ("internet off.") 

How to check internet connection using python, Source Code — https://github.com/vfxpipeline/Python-InternetThanks for watching.Do not forget Duration: 7:07

Python check if webpage is HTTP or HTTPS

I am working with websites in my script and I am looking to see if websites accept HTTP or HTTPS I have the below code but it doesn’t appear to give me any response. If there is a way i can find out if a site aspect’s HTTP or HTTPS then tell it to do something?

from urllib.parse import urlparse import http.client import sys def check_url(url): url = urlparse(url) conn = http.client.HTTPConnection(url.netloc) conn.request('HEAD', url.path) if conn.getresponse(): return True else: return False if __name__ == '__name__': url = 'http://stackoverflow.com' url_https = 'https://' + url.split('//')[1] if check_url(url_https): print 'Nice, you can load it with https' else: if check_url(url): print 'https didnt load but you can use http' if check_url(url): print 'Nice, it does load with http too' 

Typo in code.. if name == ‘ name ‘: should be if name == ‘ main ‘:

Your code has a typo in line if __name__ == ‘__name__’: .

Changing it to if __name__ == ‘__main__’: solves the problem.

The fundamental issues with your script are as follows:

• The urllib.parse module was introduced in Python3. In Python2 there was the urlparse module for that — url.parse Python2.7 equivalent. I assumed you are running on Python2, because of the print statements without parentheses.
• An if-main construct should look like if __name__ == ‘__main__’: instead of if __name__ == ‘__name__’ .

I tried the following snipped on Python3, and it wokred out pretty well.

from urllib.parse import urlparse import http.client import sys def check_url(url): url = urlparse(url) conn = http.client.HTTPConnection(url.netloc) conn.request('HEAD', url.path) if conn.getresponse(): return True else: return False if __name__ == '__main__': url = 'http://stackoverflow.com' url_https = 'https://' + url.split('//')[1] if check_url(url_https): print('Nice, you can load it with https') else: if check_url(url): print('https didnt load but you can use http') if check_url(url): print('Nice, it does load with http too') 

Try changing if __name__ == ‘__name__’: to if __name__ == ‘__main__’:

I have also refactored the code and implemented my solution in python 3. httpconnection class is not checking whether the website is using http or https, it returns true for both HTTP and HTTPS websites, so I have used the HTTPSConnection class.

from urllib.parse import urlparse from http.client import HTTPConnection, HTTPSConnection BASE_URL = 'stackoverflow.com' def check_https_url(url): HTTPS_URL = f'https://' try: HTTPS_URL = urlparse(HTTPS_URL) connection = HTTPSConnection(HTTPS_URL.netloc, timeout=2) connection.request('HEAD', HTTPS_URL.path) if connection.getresponse(): return True else: return False except: return False def check_http_url(url): HTTP_URL = f'http://' try: HTTP_URL = urlparse(HTTP_URL) connection = HTTPConnection(HTTP_URL.netloc) connection.request('HEAD', HTTP_URL.path) if connection.getresponse(): return True else: return False except: return False if __name__ == "__main__": if check_https_url(BASE_URL): print("Nice, you can load the website with HTTPS") elif check_http_url(BASE_URL): print("HTTPS didn't load the website, but you can use HTTP") else: print("Both HTTP and HTTPS did not load the website, check whether your url is malformed.") 

I think your problem is if __name__ == ‘__name__’: I assume it will work for you like this: if __name__ == ‘__main__’:

Python Script to Monitor Network Connection, The need to have our devices always connected to the internet is becoming more of a basic need than an added privilege. Having applications and devices that

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Python: Check internet connection

Python programing has many libraries and modules to check the internet connection status.

In this tutorial, we’ll use two methods to check the internet connection the requests library and the urllib module. Also, we’ll learn how to wait for the internet connection.

If you are ready, let’s get started.

Check internet connection using requests

First of all, we need to install requests.

If you don’t know about requests, check out w3chool-requests.

First, let’s write our code then explain how it works.

Initially, we import requests. Next, we try to send a request to google.com usingrequests.head() method.

If the request returns ConnectionError that means the internet connection is down, and if not, that means our internet is active.

timeout: wait (seconds) for the client to make a connection or send a response.

Let»s write our code as a function:

The is_cnx_active function return True or False.

Check internet connection using urllib.request.urlopen

With the urlopen function, we can also check the internet connection.

I think everything is clear, and no need to repeat the explanation.

How to wait for the internet connection

To wait for the internet connection, we’ll use while True statement with the is_cnx_active() function.

while True: loop forever.

The loop will break if is_cnx_active() returns True.

Related Tutorials:

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How to Check Your Internet Connection in Python?

In this article, you’ll learn how to check an Internet Connection in Python.

Problem: Given a Python program. You want to check if your computer currently has access to the Internet so you can do some follow-up work.

• If your computer has access, you want to print «Success» .
• Otherwise, you want to print «Failure» .

Specifically, how to implement the function has_connection() in the following sample code snippet?

if check_connection(): print('Success!') else: print('Failure!')

To make it more fun, we have the following running scenario:

Let’s assume you are a Python Coder working for AllTech. Lately, they have been having issues with their internet connections. You are tasked with writing code to check the connection and return a status/error message.

💬 Question: How would we write Python code to check to see if an internet connection has been established?

We can accomplish this task by one of the following options:

Preparation

Before any data manipulation can occur, one (1) new library will require installation.

To install this library, navigate to an IDE terminal. At the command prompt ( $ ), execute the code below. For the terminal used in this example, the command prompt is a dollar sign ( $ ). Your terminal prompt may be different.

Hit the key on the keyboard to start the installation process.

If the installation was successful, a message displays in the terminal indicating the same.

Feel free to view the PyCharm installation guide for the required library.

Add the following code to the top of each code snippet. This snippet will allow the code in this article to run error-free.

from urllib.request import urlopen as url import requests import socket

Method 1: Use urlopen()

This example uses urlopen() to establish a connection to the URL shown below. In addition, two (2) parameters are passed: a valid URL and a timeout.

try: url('https://finxter.com/', timeout=3) print('Success') except ConnectionError as e: print(f'Failure - ')

This code is wrapped inside a try/except statement. When run, the code drops inside the try statement and checks to see if a connection can be established to the indicated URL. This attempt waits three (3) seconds before timing out.

Depending on the connection status, a message indicating the same is output to the terminal.

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