CODEWITHSUNDEEP
pythonsockets
Shreyash Gotee
Shreyash Gotee

Reputation: 1

Can sockets in python be used without internet access

I'm trying to send data from one software to another running on the same pc. The coding in the former s/w is done in python. I'm doing this:

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.sendto("msg,Hi!", ("127.0.0.1", 12345))

This works fine when I have internet access (AF_INET). However, this is just a sample code and I will need to include this piece in some other application where I will not have internet access and so AF_INET wouldn't work. Is there a possible replacement for this?

I've already tried AF_UNIX and AF_LOCAL but neither of them works. I need to use UDP.

Upvotes: 0

Views: 1388

Answers (2)

Shan-Desai
Shan-Desai

Reputation: 3349

Of course, You do not need any Internet concepts while using Sockets. You can use an ad-hoc network to create a relaxed network and run a simple TCP or UDP socket script to transfer things you like.

You can infact use Multicasting or Broadcasting schemes to share data on different devices within the ad-hoc network.

Upvotes: 0

Chaitanya Lala
Chaitanya Lala

Reputation: 169

AF_INET has nothing to do with the INTERNET. It just means use IP based communication. You can do it on the same computer or across computers. 127.0.0.1 refers to local-host IP i.e. my own IP. Each unix/linux machine has the same local IP.

So yes this code will work without internet access.

Upvotes: 4

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