



"""simple docstring"""






def     _lowercase       (						__snake_case			)		->     str:
			__lowerCAmelCase   :						Tuple				= ""
			for ch in key:
						if ch == " " or ch not in key_no_dups and ch.isalpha():
									key_no_dups += ch
			return key_no_dups


def     _lowercase       (						__snake_case			)		->     dict[str, str]:
			__lowerCAmelCase   :						Optional[Any]				= [chr(i + 65			) for i in range(26			)]
			# Remove duplicate characters from key
			__lowerCAmelCase   :						Optional[int]				= remove_duplicates(key.upper()			)
			__lowerCAmelCase   :						Tuple				= len(__snake_case			)
			# First fill cipher with key characters
			__lowerCAmelCase   :						Tuple				= {alphabet[i]: char for i, char in enumerate(__snake_case			)}
			# Then map remaining characters in alphabet to
			# the alphabet from the beginning
			for i in range(len(__snake_case			)      ,26			):
						__lowerCAmelCase   :						int				= alphabet[i - offset]
						# Ensure we are not mapping letters to letters previously mapped
						while char in key:
									offset -= 1
									__lowerCAmelCase   :						List[Any]				= alphabet[i - offset]
						__lowerCAmelCase   :						Tuple				= char
			return cipher_alphabet


def     _lowercase       (						__snake_case      ,__snake_case			)		->     str:
			return "".join(cipher_map.get(__snake_case      ,__snake_case			) for ch in message.upper()			)


def     _lowercase       (						__snake_case      ,__snake_case			)		->     str:
			__lowerCAmelCase   :						Any				= {v: k for k, v in cipher_map.items()}
			return "".join(rev_cipher_map.get(__snake_case      ,__snake_case			) for ch in message.upper()			)


def     _lowercase       (						)		->     None:
			__lowerCAmelCase   :						List[Any]				= input("Enter message to encode or decode: "			).strip()
			__lowerCAmelCase   :						Dict				= input("Enter keyword: "			).strip()
			__lowerCAmelCase   :						List[str]				= input("Encipher or decipher? E/D:"			).strip()[0].lower()
			try:
						__lowerCAmelCase   :						List[Any]				= {"e": encipher, "d": decipher}[option]
			except KeyError:
						raise KeyError("invalid input option"			)
			__lowerCAmelCase   :						str				= create_cipher_map(__snake_case			)
			print(func(__snake_case      ,__snake_case			)			)


if __name__ == "__main__":
	import doctest

	doctest.testmod()
	main()




"""simple docstring"""






import string
from math import logaa


def     _lowercase       (						__snake_case      ,__snake_case			)		->     int:
			__lowerCAmelCase   :						int				= document.translate(
			    str.maketrans(""      ,""      ,string.punctuation			)			).replace("\n"      ,""			)
			__lowerCAmelCase   :						Dict				= document_without_punctuation.split(" "			)  # word tokenization
			return len([word for word in tokenize_document if word.lower() == term.lower()]			)


def     _lowercase       (						__snake_case      ,__snake_case			)		->     tuple[int, int]:
			__lowerCAmelCase   :						Optional[Any]				= corpus.lower().translate(
			    str.maketrans(""      ,""      ,string.punctuation			)			)  # strip all punctuation and replace it with ''
			__lowerCAmelCase   :						List[str]				= corpus_without_punctuation.split("\n"			)
			__lowerCAmelCase   :						str				= term.lower()
			return (len([doc for doc in docs if term in doc]			), len(__snake_case			))


def     _lowercase       (						__snake_case      ,__snake_case      ,__snake_case=False			)		->     float:
			if smoothing:
						if n == 0:
									raise ValueError("log10(0) is undefined."			)
						return round(1 + logaa(n / (1 + df)			)      ,3			)

			if df == 0:
						raise ZeroDivisionError("df must be > 0"			)
			elif n == 0:
						raise ValueError("log10(0) is undefined."			)
			return round(logaa(n / df			)      ,3			)





def     _lowercase       (						__snake_case      ,__snake_case			)		->     float:
			return round(tf * idf      ,3			)