def encode(s, n): #This function will encode plain text to the cipher I made s+=" "*(len(s)%n) #Makes sure that len(s) is divisible exactly by n split_s=[] encoded_s = "" #Setting up variables for x in range(n): #This will seperate s into n equal strings split_s.append(s[x*(int(len(s)/n)):(x+1)*(int(len(s)/n))]) #Appends each equal string to split_s zip_s=list(zip(*split_s)) #Matches all the first letters of all the strings to each other; all the second to each other; etc. for x in zip_s: for y in x: encoded_s+=y #Takes each individual letter and puts into the result, encoded_s print (encoded_s) return (encoded_s) #Returning and printing def decode(s,n): #This will turn the coded string into plain text decoded_s="" #Setting up variables for x in range(n): #Will extract each of the split strings decoded_s+=str(s[x::int(n)]) #By doing list slicing with the third number as n, it splits the coded letters into the original strings that were split from s print (decoded_s) return (decoded_s) #Returning and printing decode(encode("I wrote this cool program that can cipher and decipher text. Try it!",2),2) #Sample usage
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