[1.8.x] Refs #24979 -- Used inspect.getargspec() on Python 3.2.

    RemovedInDjango19Warning, RemovedInDjango110Warning,

)

from django.utils.functional import cached_property

from django.utils.inspect import HAS_INSPECT_SIGNATURE

from django.utils.module_loading import import_string

DEFAULT_DB_ALIAS = 'default'

                # If the router doesn't have a method, skip to the next one.

                continue

            if six.PY3:

            if HAS_INSPECT_SIGNATURE:

                sig = inspect.signature(router.allow_migrate)

                has_deprecated_signature = not any(

                    p.kind == inspect.Parameter.VAR_KEYWORD for p in sig.parameters.values()

from __future__ import absolute_import

import inspect

import sys

from django.utils import six

HAS_INSPECT_SIGNATURE = sys.version_info >= (3, 3)

def getargspec(func):

    if six.PY2:

    if not HAS_INSPECT_SIGNATURE:

        return inspect.getargspec(func)

    sig = inspect.signature(func)

def get_func_args(func):

    if six.PY2:

    if not HAS_INSPECT_SIGNATURE:

        argspec = inspect.getargspec(func)

        return argspec.args[1:]  # ignore 'self'

def func_accepts_kwargs(func):

    if six.PY2:

    if not HAS_INSPECT_SIGNATURE:

        # Not all callables are inspectable with getargspec, so we'll

        # try a couple different ways but in the end fall back on assuming

        # it is -- we don't want to prevent registration of valid but weird

def func_has_no_args(func):

    args = inspect.getargspec(func)[0] if six.PY2 else [

    args = inspect.getargspec(func)[0] if not HAS_INSPECT_SIGNATURE else [

        p for p in inspect.signature(func).parameters.values()

        if p.kind == p.POSITIONAL_OR_KEYWORD and p.default is p.empty

    ]

def func_supports_parameter(func, parameter):

    if six.PY3:

    if HAS_INSPECT_SIGNATURE:

        return parameter in inspect.signature(func).parameters

    else:

        args, varargs, varkw, defaults = inspect.getargspec(func)