# -*- coding: utf-8 -*-
import sys
import types

PY2 = sys.version_info[0] == 2
PY3 = sys.version_info[0] == 3


if PY2:
    import StringIO
    import Queue as queue  # noqa F401
    import urlparse  # noqa F401
    from urllib2 import HTTPError  # noqa F401
    from urllib import unquote as unquote_core  # noqa F401

    StringIO = BytesIO = StringIO.StringIO

    string_types = (basestring,)  # noqa F821
    integer_types = (int, long)  # noqa F821
    class_types = (type, types.ClassType)
    text_type = unicode  # noqa F821
    binary_type = str
    list_type = list
    dict_type = dict

    def b(s):
        return s

    def iterkeys(d, **kwargs):
        return d.iterkeys(**kwargs)

    def iteritems(d, **kwargs):
        return d.iteritems(**kwargs)

    def iterlists(d, **kwargs):
        return d.iterlists(**kwargs)

    def unquote(*args, **kwargs): # noqa F811
        return unquote_core(*args, **kwargs)
else:
    import io
    import queue  # noqa F401
    from urllib import parse as urlparse  # noqa F401
    from urllib.error import HTTPError  # noqa F401

    StringIO = io.StringIO
    BytesIO = io.BytesIO

    string_types = (str,)
    integer_types = (int,)
    class_types = (type,)
    text_type = str
    binary_type = bytes
    list_type = list
    dict_type = dict

    def b(s):
        return s.encode("latin-1")

    def iterkeys(d, **kwargs):
        return iter(d.keys(**kwargs))

    def iteritems(d, **kwargs):
        return iter(d.items(**kwargs))

    def iterlists(d, **kwargs):
        return iter(d.lists(**kwargs))

    def unquote(*args, **kwargs):
        return urlparse.unquote(*args, **kwargs)


def multidict_to_dict(d):
    return dict((k, v[0] if len(v) == 1 else v) for k, v in iterlists(d))