Perhaps this could be a PEP: 1) Add a system path for decryption keys. 2) Add a system path for optional decryptors supplied by user (to satisfy US Export Control) 3) When importing a module try: import routine except importation error : for all decryptors present for all keys present run decryptor upon module and retry, finally raise importation error.
With PGP encryption one could encrypt the pyc's with the private key and sell a public key to the end user. The Eternal Squire -- http://mail.python.org/mailman/listinfo/python-list