def make_result_dict(cursor, row):
    d = {}
    for i in xrange(len(row)):
        d[cursor.description[i][0]] = row[i]
    return d

def fetchone_dict(cursor):
    row = cursor.fetchone()
    if row != None:
        return make_result_dict(cursor, row)
    return None

def fetchall_dict(cursor):
    return map(lambda r: make_result_dict(cursor, r),
               cursor.fetchall())

def first(lst):
    return lst[0]

def second(lst):
    return lst[1]

def count(predicate, lst):
    c = 0
    for elem in lst:
        if predicate(elem):
            c = c+1
    return c

def find(predicate, lst):
    for elem in lst:
        if predicate(elem):
            return elem
    return None

def unique(lst):
    newlst = []
    for elem in lst:
        if elem not in newlst:
            newlst.append(elem)
    return newlst

def mapcond(fun, predicate, lst):
    def mapfun(x):
        if predicate(x):
            return fun(x)
        return x
    return map(mapfun, lst)

def maptup(fun, lst):
    return tuple(map(fun, lst))

def translate(value, translations):
    return translations.get(value, value)

def p(s):
    encoded = s
    if isinstance(s, unicode):
        encoded = s.encode('utf8')
    print encoded

def cut_str(string, length, ellipsis='...'):
    if len(string) < length:
        return string
    return string[0:length-len(ellipsis)]+ellipsis