{

    'key': 1,
    'key2': 3

}

def myfunc(indata):
    helper = {}
    ret = []
    for elem in indata:
        print helper
        print ret
        try:
            # res[elem]
            helper[elem] = helper[elem]+1
            ret.append( '%s%s' % (elem, helper.get(elem)))
        except KeyError:
            helper[elem] = 0
            ret.append(elem)


    return ret

data = ['lampa',
        'lampa',
        'auto',
        'lampa',
        'asztal',
        'lampa',
        'auto']

print myfunc(data)