Example on how to sign and encrypt messages in PGPY

pgpy_example.py

import pgpy

# Keys
encryption_pubkey, _ = pgpy.PGPKey.from_file('/myapp/pgp-encryption-public-key.asc')
encryption_privkey, _ = pgpy.PGPKey.from_file('/myapp/pgp-encryption-secret-key.pgp')

signing_pubkey, _ = pgpy.PGPKey.from_file('/myapp/pgp-signing-public-key.asc')
signing_privkey, _ = pgpy.PGPKey.from_file('/myapp/pgp-signing-secret-key.pgp')

message = pgpy.PGPMessage.new("My test message")

# Sign and encrypt
with signing_privkey.unlock("signkey"):
    message |= signing_privkey.sign(message)

encrypted_message = encryption_pubkey.encrypt(message)

# Decrypt
with encryption_privkey.unlock("testkey"):
    decrypted_message = encryption_privkey.decrypt(encrypted_message)
    print(decrypted_message.message)

# Verify
assert bool(signing_pubkey.verify(decrypted_message)) == True