import pyAesCrypt # encryption/decryption buffer size - 64K bufferSize = 64 * 1024 password = "foopassword" # encrypt pyAesCrypt.encryptFile("data.txt", "data.txt.aes", password, bufferSize) # decrypt pyAesCrypt.decryptFile("data.txt.aes", "dataout.txt", password, bufferSize)