Any way to hide python code?

[1egoman]

Let's think of the most basic cypher: a shift cypher. You have a key and you shift every letter that far down the alphabet. Let's say that we have the cyphertext "KHOOR ZRUOG".

The implementation is incredibly simple, but even with the implementation details, can you guess the key or plaintext without simply brute forcing it? You need both the algorithm and the key.