For a school project I have been trying to make a very very simple encryptor, however I am struggling with the encryption part. Basically I would like to have the encryption be every other letter starting from the first at the beginning and every other character at the end.
So 123456 would return as 135246
I am having trouble selecting every other letter after the first
def encrypt(message):
return "%s%s" % (message[::-1],message[::2])
print(encrypt("123456"))
use following code
def encrypt(message):
return "%s%s" % (message[::2],message[1::2])
You could tweak your method a little as follows:
def encrypt(message):
return "%s%s" % (message[::2],message[1::2])
print(encrypt("123456")) # 135246
Use slicing and indexing
msg = [1, 2, 3, 4, 5, 6]
In [30]: msg[::2] + msg[1::2]
Out[30]: [1, 3, 5, 2, 4, 6]
and for your function
def encrypt(message):
return "%s%s" % (message[::2],message[1::2])
print(encrypt("123456"))
When you use message[::-1] you are actually commanding to display all the values in reverse.
So expected output for message[::-1] will be 654321
So use
(message[::2],message[1::2])
This should work like a charm.
