A TCP client in Python

Opening a socket and speaking raw HTTP to a server.

import socket

with socket.create_connection(("example.com", 80), timeout=5) as sock:
    request = (
        "GET / HTTP/1.1\r\n"
        "Host: example.com\r\n"
        "Connection: close\r\n\r\n"
    )
    sock.sendall(request.encode())
    chunks = []
    while chunk := sock.recv(4096):
        chunks.append(chunk)

response = b"".join(chunks)
status_line = response.split(b"\r\n", 1)[0]

How it works

1. create_connection dials host and port.
2. sendall writes the request bytes.
3. recv loops until the server closes the stream.

Keywords and builtins used here

• as
• while
• with

The run, in numbers

Lines

15

Characters to type

341

Tokens

100

Three-star pace

105 tpm

At the three-star pace of 105 tokens a minute, this run takes about 57 seconds.

Type this snippet

Step 1 of 4 in Sockets & networking, step 6 of 41 in Domain tools.

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A TCP client in other languages

• C