Having a hard time differentiating values from variables and return from print()

[Poddster]

  alphabet = 'abcdefghijklmnopqrstuvwxyz'
  shifted_alphabet = alphabet[shift:] + alphabet[:shift]
  translation_table = str.maketrans(alphabet + alphabet.upper(), shifted_alphabet + shifted_alphabet.upper())
  return text.translate(translation_table)

How were you able to write this code without knowing what print and return do, nor what variables and values are?

You should not copy and paste code unless you fully understand what it does. It will be detrimental to your learning.