network programming

[Larz60+]

this will work most of the time:

import socket


class CheckInternet:
    def __init__(self):
        self.internet_available = False

    def check_availability(self):
        self.internet_available = False
        if socket.gethostbyname(socket.gethostname()) != '127.0.0.1':
            self.internet_available = True
        return self.internet_available

to use:

λ python
Python 3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:59:51) [MSC v.1914 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import CheckInternet
>>>
>>> ci = CheckInternet.CheckInternet()
>>> if not ci.check_availability():
...    print('Pleas activate internet')
... else:
...    print('Internet connection found')
...
Internet connection found
>>>