Python script to create random wireguard peer by calling`wg genkey`, `wg pubkey` and `wg genpsk` with `subprocess` module

generate-wireguard-peer.py

# Hopefully it saves you a few minutes looking at the subprocess docs

import os
import subprocess

env = os.environ.copy()

private_key = (
    subprocess.run(
        ["wg", "genkey"],
        env=env,
        capture_output=True,
    )
    .stdout.decode()
    .rstrip("\n")
)
public_key = (
    subprocess.Popen(
        ["wg", "pubkey"], stdin=subprocess.PIPE, env=env, stdout=subprocess.PIPE
    )
    .communicate(input=private_key.encode())[0]
    .decode()
    .rstrip("\n")
)
preshared_key = (
    subprocess.run(["wg", "genpsk"], env=env, capture_output=True)
    .stdout.decode()
    .rstrip("\n")
)

print("PRIVATE: {}".format(private_key))
print("PUBLIC : {}".format(public_key))
print("PSK    : {}".format(preshared_key))