Question

我是Django的新手。我理解基本的Django MVC架构。经过一点点的谷歌搜索后，我发现我们应该遵循以下目录结构，而不是使用django-admin.py startproject myproj和manage.py startapp app1自动生成。

现在我的Django项目结构是。（为了解决小问题，我跳过了一些像日志，fabfile等的东西）

ROOT_DIR
    |-- manage.py
    |-- readme.txt
    |-- requirements.txt
    `-- webapp
        |-- apps
        |   |-- app1
        |   |   |-- admin.py
        |   |   |-- __init__.py
        |   |   |-- models.py
        |   |   |-- tests.py
        |   |   |-- urls.py
        |   |   `-- views.py
        |   |-- app2
        |   |   |-- admin.py
        |   |   |-- __init__.py
        |   |   |-- models.py
        |   |   |-- tests.py
        |   |   |-- urls.py
        |   |   `-- views.py
        |   `-- __init__.py
        |-- __init__.py
        |-- settings
        |   |-- __init__.py
        |   |-- common.py
        |   |-- development.py
        |   `-- production.py
        |-- static #CSS,JS,Images...
        |-- templates
        |-- urls.py
        `-- wsgi.py

wsgi.py

import os
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "webapp.settings.development")

from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()

manage.py

import os,sys
if __name__ == "__main__":
    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "webapp.settings.development")
    from django.core.management import execute_from_command_line
    execute_from_command_line(sys.argv)

但是当我运行python manage.py runserver时，我收到此错误

Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/home/eric/venv/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 399, in execute_from_command_line
    utility.execute()
  File "/home/eric/venv/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 392, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/eric/venv/local/lib/python2.7/site-packages/django/core/management/base.py", line 242, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/home/eric/venv/local/lib/python2.7/site-packages/django/core/management/base.py", line 280, in execute
    translation.activate('en-us')
  File "/home/eric/venv/local/lib/python2.7/site-packages/django/utils/translation/__init__.py", line 130, in activate
    return _trans.activate(language)
  File "/home/eric/venv/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py", line 188, in activate
    _active.value = translation(language)
  File "/home/eric/venv/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py", line 177, in translation
    default_translation = _fetch(settings.LANGUAGE_CODE)
  File "/home/eric/venv/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py", line 159, in _fetch
    app = import_module(appname)
  File "/home/eric/venv/local/lib/python2.7/site-packages/django/utils/importlib.py", line 40, in import_module
    __import__(name)
ImportError: No module named app2

我在development.py的文件的开头和结尾放了一个check print语句。 print INSTALLED_APPS

当我运行runserver时会打印出这个INSTALLED_APPS列表的所有值（我的意思是我在develop.py中获得的所有应用程序.INSTALLED_APPS变量在common.py中，而development.py正在导入common.py）

我不知道我哪里弄错了。（这是因为我使用list而不是tuple来安装instal_apps变量吗？我正在使用from common import *但我不认为这个import语句是导致此错误的主要原因。我是否必须导入其他类似的东西from __future__ import ...*）

PS：如果你有任何与结构有关的建议，那么最受欢迎，但我更关心这个错误。

修改

common.py

import os
import sys

BASE_DIR = os.path.dirname(os.path.dirname(__file__))
PROJECT_DIR = os.path.join(BASE_DIR, "webapp")

sys.path.append(PROJECT_DIR + '/apps')

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'south',
    'app1',
    'app2',
]

...

Answer 1

看起来webapp/apps不在您的路径上，所以它看起来并没有找到app2模块。

我发现由于各种原因，我总是需要修改PYTHONPATH ...每个项目/环境都会以init_pythonpath.py文件结束：

import sys

def init_pythonpath():
    path = '/home/patrick/path/to/project'
    venv = '/home/patrick/.virtualenvs/venv_name/lib/python2.7/site-packages'
    if venv not in sys.path:
        sys.path.insert(0, venv)
    if path not in sys.path:
        sys.path.insert(0, path)

然后，在manage.py或wsgi.py中添加此咒语：

import imp
init_pythonpath_path = os.path.join(os.path.dirname(__file__), 'init_pythonpath.py')
init_pythonpath = imp.load_source('init_pythonpath', init_pythonpath_path)
init_pythonpath.init_pythonpath()

import sys

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "settings")

# ...

它可能适合你。

Django项目配置错误

1 个答案: