isogram by gauravssnl.py

# isogram.py by gauravssnl

__author__ = "gauravssnl"

def is_isogram( inputStr ) :

    # check type of input string first
    if type( inputStr ) == str :

        # condition for empty input string
        if inputStr.strip( ) == '' :
            return ( inputStr  ,False )

        # input string  is not empty
        else :

            # we need to convert all characters of input string  to lower for input like "Ramr" ,"RAma"
            s = inputStr.lower( )

            # check count of each character in input string
            # if it is more than 1 ,then input string s is not isogram
            for i in s :
                if s.count ( i ) > 1 :
                    return ( inputStr , False )

            # thus input string s  is isogram
            return ( inputStr , True )


    else :
        raise AttributeError


if __name__ ==  '__main__' :
    print( is_isogram( "abolishment") )
    print ( is_isogram( "happy" ) )

    # special case where same capital and small letters are present : string is not isogram
    print ( is_isogram( 'Ramr' )  )

    # print ( is_isogram( 105 )  )