PYTHON

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

python check if there is internet

try:
    import httplib  # python < 3.0
except:
    import http.client as httplib


def have_internet():
    conn = httplib.HTTPSConnection("8.8.8.8", timeout=5)
    try:
        conn.request("HEAD", "/")
        return True
    except Exception:
        return False
    finally:
        conn.close()

python detect internet connection

try:
    import httplib
except:
    import http.client as httplib

def have_internet():
    conn = httplib.HTTPConnection("www.google.com", timeout=5)
    try:
        conn.request("HEAD", "/")
        conn.close()
        return True
    except:
        conn.close()
        return False
# Code by Ivelin on Stack overflow

python check if there is internet connection

# pip install pythonping
from pythonping import ping
def internet_connected(test_ip_address="8.8.8.8"):
    return ping(test_ip_address).success()