Django 和 Buildout 部署问题

Question

我正在尝试通过构建部署现有的 django 项目，大致遵循此处。

我的 buildout.cfg 文件是：

[buildout]
parts       =     django python
develop     =     .
eggs        =     myproject

[django]
recipe      =     djangorecipe
version     =     1.2.3
project     =     myproject
projectegg  =     myproject
settings    =     settings
wsgi        =     true
eggs        =     ${buildout:eggs}

[python]
recipe      =     zc.recipe.egg
interpreter =     python
eggs        =     ${buildout:eggs}

有两个问题：

1. 首先，如果我通过 ./bin/python 调用 python 解释器，我会收到 import myproject 的导入错误
2. 其次，如果我尝试加载 django.wsgi 文件，我还会出现 apache 错误

[Sun Oct 03 11:57:37 2010] [error] [client ::1] mod_wsgi (pid=5045): Target WSGI script '/usr/src/django/myproject/bin/django.wsgi' cannot be loaded as Python module.
[Sun Oct 03 11:57:37 2010] [error] [client ::1] mod_wsgi (pid=5045): SystemExit exception raised by WSGI script '/usr/src/django/myproject/bin/django.wsgi' ignored.
[Sun Oct 03 11:57:37 2010] [error] [client ::1] Traceback (most recent call last):
[Sun Oct 03 11:57:37 2010] [error] [client ::1]   File "/usr/src/django/myproject/bin/django.wsgi", line 20, in 
[Sun Oct 03 11:57:37 2010] [error] [client ::1]     application = djangorecipe.wsgi.main('myproject.settings', logfile='')
[Sun Oct 03 11:57:37 2010] [error] [client ::1]   File "/usr/src/django/myproject/eggs/djangorecipe-0.20-py2.6.egg/djangorecipe/wsgi.py", line 15, in main
[Sun Oct 03 11:57:37 2010] [error] [client ::1]     sys.exit(1)

我的 django.wsgi 文件是（根据建议的更改更新）：

#!/usr/bin/python


import sys
sys.path[0:0] = [
  '/usr/src/django/myproject/src',
    '/usr/src/django/myproject/eggs/djangorecipe-0.20-py2.6.egg',
    '/usr/src/django/myproject/eggs/zc.recipe.egg-1.3.2-py2.6.egg',
    '/usr/src/django/myproject/eggs/zc.buildout-1.5.1-py2.6.egg',
    '/usr/local/lib/python2.6/dist-packages',
    '/usr/local/lib/python2.6/dist-packages',
    '/usr/src/django/myproject/parts/django',
    '/usr/src/django/myproject/eggs/setuptools-0.6c12dev_r85190-py2.6.egg',
    '/usr/src/django/myproject/parts/django',
    '/usr/src/django/myproject',
    '/usr/src/django/myproject/src(/usr/src/django/myproject)',
    '/usr/src/django/myproject',
  ]

import djangorecipe.wsgi

application = djangorecipe.wsgi.main('myproject.settings', logfile='')

我的 bin/django 文件是：

#!/usr/bin/python

import sys
sys.path[0:0] = [
    '/usr/src/django/myproject/src',
    '/usr/src/django/myproject/eggs/djangorecipe-0.20-py2.6.egg',
    '/usr/src/django/myproject/eggs/zc.recipe.egg-1.3.2-py2.6.egg',
    '/usr/src/django/myproject/eggs/zc.buildout-1.5.1-py2.6.egg',
    '/usr/local/lib/python2.6/dist-packages',
    '/usr/local/lib/python2.6/dist-packages',
    '/usr/src/django/myproject/parts/django',
    '/usr/src/django/myproject/eggs/setuptools-0.6c12dev_r85190-py2.6.egg',
    '/usr/src/django/myproject/parts/django',
    '/usr/src/django/myproject',
    '/usr/src/django/myproject/src(/usr/src/django/myproject)',
    '/usr/src/django/myproject',
    ]


import djangorecipe.manage

if __name__ == '__main__':
    djangorecipe.manage.main('myproject.settings')

导入或 apache 服务器似乎都不起作用

Answer 1

中设置了错误的egg依赖项，

你的问题是你在构建部分的配方

eggs = myproject

你将自己的myproject django项目设置为此

设置中的依赖项，你需要设置所有依赖于它的python Eggs（包） 如果您的 django 项目

例如，

eggs =
    psycopg2
    south
    django-debug-toolbar
    django-extensions

使用 postgresql psycopg2 连接器、south 用于数据库迁移以及 django-debug-toolbar 和 django-extensions，则

您可以从此列表中排除您的 python 系统安装中的任何包。

从eggs设置中删除您的项目，这会混淆您的构建。

Answer 2

可能您需要为项目设置额外的路径，以便将其放在 python 路径上。你能粘贴你的 django.wsgi 和 django 文件吗？

尝试这个配置：

[buildout]
parts       =     django python
develop     =     .
eggs        =     myproject
extra_paths = 
    src(path_to your_project_source)
    ${buildout:directory}

[django]
recipe      =     djangorecipe
version     =     1.2.3
project     =     myproject
projectegg  =     myproject
settings    =     settings
wsgi        =     true
eggs        =     ${buildout:eggs}
extra-paths = ${buildout:extra_paths}

[python]
recipe      =     zc.recipe.egg
interpreter =     python
eggs        =     ${buildout:eggs}
extra-paths = ${buildout:extra_paths}

您还可以确保 django.wsgi 具有可执行权限

chmod +x django.wsgi

Answer 3

看起来很奇怪的一件事： bin/django 和 bin/django.wsgi 文件中的 '/usr/src/django/myproject/src(/usr/src/django/myproject)' 。

我从来没见过（）那种东西。看起来它可能会破坏东西。

最好的选择：运行

gt; bin/python
>>> import sys
>>> print sys.path

并查看 python 本身认为它的路径是什么。构建设置一切正常，但你的脚本中有一些我以前从未见过的东西。

另一种选择：您确定您的实际代码不包含最终导致应用程序导入错误的导入错误（如果您依赖 PIL 或 cx_oracle 等 C 级库，有时会发生这种情况）。

Answer 4

对我有用的是根本不触及构建本身，只需确保执行 .wsgi 脚本时所有鸡蛋都在 PYTHONPATH 中。 .wsgi 脚本本身如下所示：

import os
import sys

PREFIX = '/path/to/my/app'  # the buildout is here

BUILDOUT_EGGS = [
    'Django-1.3-py2.6.egg',
    'South-0.7.6-py2.6.egg',
    'django_haystack-1.2.7-py2.6.egg',
    'djangopypi-0.4.4-py2.6.egg',
    'docutils-0.9.1-py2.6.egg',
    'setuptools-0.6c12dev_r88846-py2.6.egg',
    'zc.recipe.egg-1.3.2-py2.6.egg',
    'Whoosh-2.4.1-py2.6.egg',
    'django_registration-0.8_alpha_1-py2.6.egg',
    'djangorecipe-1.2.1-py2.6.egg',
#    'pkginfo-0.9-py2.6.egg',                                                                                                                                                                                                                                  
#    'zc.buildout-1.6.0-py2.6.egg',                                                                                                                                                                                                                            

]

sys.path[0:0] = [PREFIX] + ['%s/eggs/%s' % (PREFIX, egg) for egg in BUILDOUT_EGGS]

os.environ['DJANGO_SETTINGS_MODULE'] = 'myapp.settings'

import djangorecipe.wsgi
application = djangorecipe.wsgi.main('myapp.settings', logfile='myapp.log')