A simple command-line passphrase generator.
There are potential security concerns with any program that generates passphrases, foremost of which is sufficient randomness of generation; if a passphrase is generated using a poor pseudorandom algorithm, the password may be more guessable than a truly random passphrase. I am not a security expert, but I beleive that this program generates passwords from a sufficiently random source to avoid this issue.
Specifically, this program uses SystemRandom for randomness generation. This is supposed to be secure enough for cryptographic applications, so presumably suits our purposes too.
If you have any concerns or suggestions with regard to this program's security, please let me know.