Day 4: cipher wrap around
Hi there! I’m a passionate learner who loves exploring Python's endless possibilities. Over the past years, I’ve immersed myself in coding, honing my skills by tackling diverse projects that combine creativity and problem-solving.
From building a modern rendition of the classic Asteroids game in Python to experimenting with data visualization and automation, I thrive on turning ideas into reality through code.
Follow along as I learn, grow, and share my journey!
Today, I started to implement the Caesar Cipher.
The first part was to create a function called 'encrypt' that takes the 'text' and 'shifts' the input text.
def encrypt(text, shift):
The actual shift can be accomplished with an array new_text holding each letter shifted by shifts places.
new_text = []
for letter in text:
index = alphabet.index(letter)
figuring out the index then its easy enough adding the shift to index index+shifts
But the issue with this is as you approach letters deeper in the alphabet you'll be going out of range. So you have to wrap around the alphabet - and the best way to do that is by using the modulus operator to always check to see what this value is modulus the letters in the alphabet.
new_text.append(alphabet[(index+shift)%len(alphabet)])
and by joining the new_text array you end up with the shifted encoded message.
print(''.join(new_text))
Tomorrow, I'll use this to continue the Caesar Cipher.
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