





def 							_lowerCamelCase(  UpperCamelCase__    : Optional[int]		)		->  int:
    A       :       Dict							=						''''''
    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 							_lowerCamelCase(  UpperCamelCase__    : Any		)		->  Union[str, Any]:
    A       :       Optional[int]							=						[chr(i + 65		) for i in range(26		)]
    # Remove duplicate characters from key
    A       :       Dict							=						remove_duplicates(key.upper()		)
    A       :       str							=						len(_UpperCAmelCase		)
    # First fill cipher with key characters
    A       :       str							=						{alphabet[i]: char for i, char in enumerate(_UpperCAmelCase		)}
    # Then map remaining characters in alphabet to
    # the alphabet from the beginning
    for i in range(len(_UpperCAmelCase		)    ,       26		):
        A       :       Dict							=						alphabet[i - offset]
        # Ensure we are not mapping letters to letters previously mapped
        while char in key:
            offset -= 1
            A       :       List[str]							=						alphabet[i - offset]
        A       :       int							=						char
    return cipher_alphabet
def 							_lowerCamelCase(  UpperCamelCase__    : Any    ,       UpperCamelCase__    : Optional[int]		)		->  Optional[int]:
    return "".join(cipher_map.get(_UpperCAmelCase    ,       _UpperCAmelCase		) for ch in message.upper()		)
def 							_lowerCamelCase(  UpperCamelCase__    : Any    ,       UpperCamelCase__    : int		)		->  Optional[int]:
    A       :       Union[str, Any]							=						{v: k for k, v in cipher_map.items()}
    return "".join(rev_cipher_map.get(_UpperCAmelCase    ,       _UpperCAmelCase		) for ch in message.upper()		)
def 							_lowerCamelCase(  )		->  Dict:
    A       :       int							=						input('''Enter message to encode or decode: '''		).strip()
    A       :       List[str]							=						input('''Enter keyword: '''		).strip()
    A       :       Dict							=						input('''Encipher or decipher? E/D:'''		).strip()[0].lower()
    try:
        A       :       List[str]							=						{'''e''': encipher, '''d''': decipher}[option]
    except KeyError:
        raise KeyError('''invalid input option'''		)
    A       :       List[str]							=						create_cipher_map(_UpperCAmelCase		)
    print(func(_UpperCAmelCase    ,       _UpperCAmelCase		)		)


if __name__ == "__main__":
     import doctest

     doctest.testmod()
     main()







'''simple docstring'''






import requests

snake_case_     =	"""https://newsapi.org/v1/articles?source=bbc-news&sortBy=top&apiKey="""
def 							_lowerCamelCase(  UpperCamelCase__    : str		)		->  None:
    # fetching a list of articles in json format
    A       :       Any							=						requests.get(_NEWS_API + bbc_news_api_key		).json()
    # each article in the list is a dict
    for i, article in enumerate(bbc_news_page['''articles''']    ,       1		):
        print(F'''{i}.) {article['title']}'''		)


if __name__ == "__main__":
     fetch_bbc_news(bbc_news_api_key="""<Your BBC News API key goes here>""")
