generate-wireguard-key.py

import codecs
from cryptography.hazmat.primitives.asymmetric.x25519 import X25519PrivateKey
from cryptography.hazmat.primitives import serialization

# generate private key
private_key = X25519PrivateKey.generate()
bytes_ = private_key.private_bytes(  
    encoding=serialization.Encoding.Raw,  
    format=serialization.PrivateFormat.Raw,
    encryption_algorithm=serialization.NoEncryption()
)
print(codecs.encode(bytes_, 'base64').decode('utf8').strip())

# derive public key
pubkey = private_key.public_key().public_bytes(encoding=serialization.Encoding.Raw, format=serialization.PublicFormat.Raw)
print(codecs.encode(pubkey, 'base64').decode('utf8').strip())