0 
import simplejson
from urllib2 import urlopen
from simplejson import loads
from django.core import serializers
content = loads(urlopen('https://graph.facebook.com/1234676502/feed').read())
content =  simplejson.dumps(content,sort_keys=True, indent=4)
print content
json_serializer = serializers.get_serializer("json")()
json_serializer.deserialize(content)

在运行上面的 python 代码时，我得到以下错误：

Traceback (most recent call last):
  File "/var/www/youedo/test.py", line 22, in <module>
    json_serializer = serializers.get_serializer("json")()
  File "/usr/local/lib/python2.6/dist-packages/django/core/serializers/__init__.py", line 63, in get_serializer
    _load_serializers()
  File "/usr/local/lib/python2.6/dist-packages/django/core/serializers/__init__.py", line 109, in _load_serializers
    register_serializer(format, BUILTIN_SERIALIZERS[format], serializers)
  File "/usr/local/lib/python2.6/dist-packages/django/core/serializers/__init__.py", line 51, in register_serializer
    module = importlib.import_module(serializer_module)
  File "/usr/local/lib/python2.6/dist-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/usr/local/lib/python2.6/dist-packages/django/core/serializers/xml_serializer.py", line 6, in <module>
    from django.core.serializers import base
  File "/usr/local/lib/python2.6/dist-packages/django/core/serializers/base.py", line 7, in <module>
    from django.db import models
  File "/usr/local/lib/python2.6/dist-packages/django/db/__init__.py", line 14, in <module>
    if not settings.DATABASES:
  File "/usr/local/lib/python2.6/dist-packages/django/utils/functional.py", line 276, in __getattr__
    self._setup()
  File "/usr/local/lib/python2.6/dist-packages/django/conf/__init__.py", line 38, in _setup
    raise ImportError("Settings cannot be imported, because environment variable %s is undefined." % ENVIRONMENT_VARIABLE)
ImportError: Settings cannot be imported, because environment variable DJANGO_SETTINGS_MODULE is undefined.

...当我打印内容时，它会正确打印 JSON 字符串。

编辑：2 import simplejson from urllib2 import urlopen from simplejson import loading from django.core import serializers content = loading(urlopen('https://graph.facebook.com/1234676502/feed').read())

json_serializer = serializers.get_serializer("json")()
json_serializer.get_deserialize(content)

我将此代码放在 view.py 中，然后出现以下错误：

AttributeError at /rss

'Serializer' object has no attribute 'get_deserialize'

Request Method:     GET
Request URL:    http://127.0.0.1:8000/rss
Django Version:     1.2.4
Exception Type:     AttributeError
Exception Value:    

'Serializer' object has no attribute 'get_deserialize'
4

1 回答 1

1

您的错误与 json 本身无关，它明确指出它无法导入DJANGO_SETTINGS，这意味着您没有 django 应用程序上下文。解决这个问题的最简单方法是安装 django 扩展，它提供了./manage.py runscript使用 django 应用程序上下文运行脚本的命令。

Django 扩展可以在这里找到

编辑：：查看您的第二次编辑，我可以看到您正在使用一种方法get_deserialize()，正确的方法应该是deserialize()，AFAIK。

于 2011-03-08T06:52:25.493 回答