Easy frequency analysis python

import collections

ALPHABET = "abcdefghijklmnopqrstuvwxyz"
ETAOIN = 'etaoinshrdlcumwfgypbvkjxqz'

def generate_caesar_key(offset):
    dictionary = {}
    index = 0
    for letter in ALPHABET:
        if index+offset >= 26:
            index -= 26
        dictionary.update({letter:ALPHABET[index+offset]})
        index += 1
    return dictionary

def switch_encode(string, key):
    encoded = ""
    for letter in string.lower():
        if letter in key.keys():
            encoded += key[letter]
        else:
            encoded += letter
    return encoded

def switch_decode(string, key):
    key = dict(zip(key.values(),key.keys()))
    decoded = ""
    for letter in string.lower():
        if letter in key.keys():
            decoded += key[letter]
        else:
            decoded += letter
    return decoded

def switch_crack(string):
    key = {}
    frequent_letters = collections.Counter(string).most_common()
    index = 0
    for letter in frequent_letters:
        if letter[0] in ALPHABET:
            key[ETAOIN[index]] = letter[0]
            index += 1
    return key

Source: stackoverflow.com

Similar codes

0 vote274 views2 answers
Input list in function and display column in dataframe python
Python
110 votes278 views6 answers
Python while
Python
0 vote267 views1 answer
ModuleNotFoundError: No module named 'django.db.models.enums'
Python
0 vote275 views1 answer
Python argsort a list
Python
0 vote254 views1 answer
"default_dburl" is not defined Pylance
Python
4 votes262 views6 answers
Python rgb to hex
Python
11 votes245 views3 answers
Python random choice int
Python
0 vote266 views1 answer
Flask - store object directly in a session [duplicate]
Python
-2 votes251 views1 answer
How to print int in flutter
Python
7 votes266 views1 answer
Python get list of files in path
Python