如何解决ImportError：无法在Django中导入simplejson

问题描述

我正在Django（1.7.1）中建立一个实时聊天应用程序。看来我需要安装Redis和ishout.js。所以我按照说明安装它们。

在Django中创建项目之后，我将drealtime放在INSTALLED_APPS下，并将：

 'drealtime.middleware.iShoutCookieMiddleware'
  

右上：

 'django.contrib.sessions.middleware.SessionMiddleware'
  

在 MIDDLEWARE_CLASSES 之下。我把命令像

  python manage.py startapp example 
  

但是我仍然有这个导入错误消息：

 最近的电话最后）：
文件manage.py，第10行，在< module> 
 execute_from_command_line（sys.argv）
文件/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/management/__init__.py，行385，在execute_from_command_line 
 utility.execute（）
文件/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/management/__init__ .py，行354，执行
 django.setup（）
文件/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/__init__ .py，第21行，设置
 apps.populate（settings.INSTALLED_APPS）
文件/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/ django / apps / registry.py，第85行，填入
 app_config = AppConfig.create（entry）
文件/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7 /site-packages/django/apps/config.py，第87行，创建
 module = import_module（entry）
文件/Library/Frameworks/Python.framework/Ver sions / 2.7 / lib / python2.7 / importlib / __ init__.py，第37行，import_module 
 __import __（name）
文件/Library/Frameworks/Python.framework/Versions/2.7/lib /python2.7/site-packages/drealtime/__init__.py，第4行在< module> 
从django.utils import simplejson as json 
  

在我通过Django官方网站进行搜索之后，我发现simplejson不再被使用，并从新的Django中删除。我不知道为什么会发生这种情况。
请给出关于这个问题的任何反馈和可能的补救办法来解决这个问题。

解决方案

你使用的是过时的版本的 django-realtime 。

将其升级到最新版本，他们：

  pip install django-realtime --upgrade 
  / pre> 
 
 
如果错误仍然存​​在，请直接从github安装主分支：
  $ pip install git + https：//github.com/anishmenon/django-realtime.git --upgrade 
  
 FYI，修复：
  try：
 from django.utils import simplejson as json 
除了：
 import simplejson as json 
  
 
I'm trying to build a realtime chat app in Django(1.7.1). It seems that I needed to install Redis and ishout.js. So I installed them by following the instructions. 
After making the project in Django, I put 'drealtime' under the INSTALLED_APPS, and put:
'drealtime.middleware.iShoutCookieMiddleware'
right above :
'django.contrib.sessions.middleware.SessionMiddleware'
under the MIDDLEWARE_CLASSES as it was saying. And I put the command like 
python manage.py startapp example
but still I have this import error message: 
Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
    utility.execute()
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/management/__init__.py", line 354, in execute
    django.setup()
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/__init__.py", line 21, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/apps/registry.py", line 85, in populate
    app_config = AppConfig.create(entry)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/apps/config.py", line 87, in create
    module = import_module(entry)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/drealtime/__init__.py", line 4, in <module>
    from django.utils import simplejson as json
After I searched through the Django official site, I found simplejson is no longer used and removed from new Django. I don't know why this is happening.Please give any feedback on this issue and possible remedy to tackle this issue.
 解决方案 
You are using an outdated version of django-realtime. 
Upgrade it to the latest version, they fixed the 1.7 compatibility:
pip install django-realtime --upgrade
If the error persists, install directly from github, master branch:
$ pip install git+https://github.com/anishmenon/django-realtime.git --upgrade
FYI, the fix:
try:
    from django.utils import simplejson as json
except:
    import simplejson as json
                        
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