(mc)
return " ".join(characterstring)
Decodes a Morse Code with letters separated by "|"
    and words by "||" into plaintext.

    References
    ==========

    .. [1] http://en.wikipedia.org/wiki/Morse_code

    Examples
    ========

    >>> from sympy.crypto.crypto import decode_morse
    >>> mc = '--|---|...-|.||.|.-|...|-'
    >>> decode_morse(mc)
    'MOVE EAST'
Decodes a Morse Code with letters separated by "|"
    and words by "||" into plaintext.
Decodes a Morse Code with letters separated by | and words by || into plaintext .
def decode_morse(mc):
    """
    Decodes a Morse Code with letters separated by "|"
    and words by "||" into plaintext.

    References
    ==========

    .. [1] http://en.wikipedia.org/wiki/Morse_code

    Examples
    ========

    >>> from sympy.crypto.crypto import decode_morse
    >>> mc = '--|---|...-|.||.|.-|...|-'
    >>> decode_morse(mc)
    'MOVE EAST'

    """

    morse_decoding_map = {".-": "A", "-...": "B",
                          "-.-.": "C", "-..": "D",
                          ".": "E", "..-.": "F",
                          "--.": "G", "....": "H",
                          "..": "I", ".---": "J",
                          "-.-": "K", ".-..": "L",
                          "--": "M", "-.": "N",
                          "---": "O", ".--.": "P",
                          "--.-": "Q", ".-.": "R",
                          "...": "S", "-": "T",
                          "..-": "U", "...-": "V",
                          ".--": "W", "-..-": "X",
                          "-.--": "Y", "--..": "Z",
                          "-----": "0", "----": "1",
                          "..---": "2", "...--": "3",
                          "....-": "4", ".....": "5",
                          "-....": "6", "--...": "7",
                          "---..": "8", "----.": "9",
                          ".-.-.-": ".", "--..--": ",",
                          "---...": ":", "-.-.-.": ";",
                          "..--..": "?", "-...-": "-",
                          "..--.-": "_", "-.--.": "(",
                          "-.--.-": ")", ".----.": "'",
                          "-...-": "=", ".-.-.": "+",
                          "-..-.": "/", ".--.-.": "@",
                          "...-..-": "$", "-.-.--": "!"}

    characterstring = []

    if mc[-1] == "|" and mc[-2] == "|":
        mc = mc[:-2]
    words = mc.split("||")
    for word in words:
        letters = word.split("|")
        characterword = []
        for letter in letters:
            try:
                characterletter = morse_decoding_map[letter]
            except KeyError:
                return "Invalid Morse Code"
            characterword.append(characterletter)

        word = "".join(characterword)
        characterstring.append(word)
    return " ".join(characterstring)
def decode_morse ( mc ) : morse_decoding_map = { ".-" : "A" , "-..." : "B" , "-.-." : "C" , "-.." : "D" , "." : "E" , "..-." : "F" , "--." : "G" , "...." : "H" , ".." : "I" , ".---" : "J" , "-.-" : "K" , ".-.." : "L" , "--" : "M" , "-." : "N" , "---" : "O" , ".--." : "P" , "--.-" : "Q" , ".-." : "R" , "..." : "S" , "-" : "T" , "..-" : "U" , "...-" : "V" , ".--" : "W" , "-..-" : "X" , "-.--" : "Y" , "--.." : "Z" , "-----" : "0" , "----" : "1" , "..---" : "2" , "...--" : "3" , "....-" : "4" , "....." : "5" , "-...." : "6" , "--..." : "7" , "---.." : "8" , "----." : "9" , ".-.-.-" : "." , "--..--" : "," , "---..." : ":" , "-.-.-." : ";" , "..--.." : "?" , "-...-" : "-" , "..--.-" : "_" , "-.--." : "(" , "-.--.-" : ")" , ".----." : "'" , "-...-" : "=" , ".-.-." : "+" , "-..-." : "/" , ".--.-." : "@" , "...-..-" : "$" , "-.-.--" : "!" } characterstring = [ ] if mc [ - 1 ] == "|" and mc [ - 2 ] == "|" : mc = mc [ : - 2 ] words = mc . split ( "||" ) for word in words : letters = word . split ( "|" ) characterword = [ ] for letter in letters : try : characterletter = morse_decoding_map [ letter ] except KeyError : return "Invalid Morse Code" characterword . append ( characterletter ) word = "" . join ( characterword ) characterstring . append ( word ) return " " . join ( characterstring )