运行:python manage.py runserver 报错

本文记录了一次在启动Django服务器过程中遇到的错误,并详细分析了错误原因。主要问题是由于在加载模块时发生了导入错误,涉及到第三方应用xadmin及其依赖项tablib未能正确安装。

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Unhandled exception in thread started by <function wrapper at 0x7f22d0e0a1b8>
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/django/utils/autoreload.py", line 226, in wrapper
    fn(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/runserver.py", line 109, in inner_run
    autoreload.raise_last_exception()
  File "/usr/local/lib/python2.7/dist-packages/django/utils/autoreload.py", line 249, in raise_last_exception
    six.reraise(*_exception)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/autoreload.py", line 226, in wrapper
    fn(*args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/django/__init__.py", line 18, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/usr/local/lib/python2.7/dist-packages/django/apps/registry.py", line 115, in populate
    app_config.ready()
  File "/mnt/MxOnline/extra_apps/xadmin/apps.py", line 14, in ready
    self.module.autodiscover()
  File "/mnt/MxOnline/extra_apps/xadmin/__init__.py", line 49, in autodiscover
    register_builtin_plugins(site)
  File "/mnt/MxOnline/extra_apps/xadmin/plugins/__init__.py", line 43, in register_builtin_plugins
    [import_module('xadmin.plugins.%s' % plugin) for plugin in PLUGINS if plugin not in exclude_plugins]
  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/mnt/MxOnline/extra_apps/xadmin/plugins/importexport.py", line 48, in <module>
    from import_export.admin import DEFAULT_FORMATS, SKIP_ADMIN_LOG, TMP_STORAGE_CLASS
  File "/usr/local/lib/python2.7/dist-packages/import_export/admin.py", line 31, in <module>
    from .resources import (
  File "/usr/local/lib/python2.7/dist-packages/import_export/resources.py", line 4, in <module>
    import tablib
ImportError: No module named tablib



==============================

(mxonline) root@iZbp1berl2oy3e3vt5476fZ:/mnt/MxOnline# python manage.py runserver
Performing system checks...

/root/.virtualenvs/mxonline/local/lib/python2.7/site-packages/DjangoUeditor/urls.py:15: RemovedInDjango110Warning: django.conf.urls.patterns() is deprecated and will be removed in Django 1.10. Update your urlpatterns to be a list of django.conf.urls.url() instances instead.
  url(r'^controller/$',get_ueditor_controller)

Unhandled exception in thread started by <function wrapper at 0x7f4ef3d06d70>
Traceback (most recent call last):
  File "/root/.virtualenvs/mxonline/local/lib/python2.7/site-packages/django/utils/autoreload.py", line 226, in wrapper
    fn(*args, **kwargs)
  File "/root/.virtualenvs/mxonline/local/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 116, in inner_run
    self.check(display_num_errors=True)
  File "/root/.virtualenvs/mxonline/local/lib/python2.7/site-packages/django/core/management/base.py", line 426, in check
    include_deployment_checks=include_deployment_checks,
  File "/root/.virtualenvs/mxonline/local/lib/python2.7/site-packages/django/core/checks/registry.py", line 75, in run_checks
    new_errors = check(app_configs=app_configs)
  File "/root/.virtualenvs/mxonline/local/lib/python2.7/site-packages/django/core/checks/urls.py", line 10, in check_url_config
    return check_resolver(resolver)
  File "/root/.virtualenvs/mxonline/local/lib/python2.7/site-packages/django/core/checks/urls.py", line 19, in check_resolver
    for pattern in resolver.url_patterns:
  File "/root/.virtualenvs/mxonline/local/lib/python2.7/site-packages/django/utils/functional.py", line 33, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "/root/.virtualenvs/mxonline/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 426, in url_patterns
    raise ImproperlyConfigured(msg.format(name=self.urlconf_name))
django.core.exceptions.ImproperlyConfigured: The included URLconf 'MxOnline.urls' does not appear to have any patterns in it. If you see valid patterns in the file then the issue is probably caused by a circular import.




<think>好的,我现在需要帮助用户解决Django运行`python manage.py runserver`时服务器无响应的问题。首先,我得回忆一下常见的导致这个问题的原因,并结合提供的引用资料来分析可能的解决方案。 根据用户提供的引用内容,可能有以下几个原因: 1. **目录正确**:用户可能没有在正确的项目目录下运行命令,导致Django找manage.py文件[^1]。这时候需要确认当前目录是否正确,是否包含manage.py。 2. **端口被占用**:默认情况下,Django使用8000端口,如果该端口被其他程序占用,服务器可能无法启动。用户可能需要检查端口占用情况,并尝试更换端口,比如使用`python manage.py runserver 8080`。 3. **数据库配置错误**:引用中提到数据库密码错误会导致启动失败[^3],需要检查settings.py中的数据库配置,尤其是用户名和密码是否正确,以及数据库服务是否运行(比如MySQLPostgreSQL)。 4. **依赖包缺失版本冲突**:有时候缺少某些依赖包,者包版本兼容会导致Django无法正常启动。这时候需要检查是否安装了所有依赖,并尝试更新回滚版本。 5. **代码错误迁移问题**:如果模型有变动但未执行迁移,者代码中存在语法错误,可能导致服务器启动失败。需要运行`python manage.py makemigrations`和`migrate`,并检查代码是否有错误。 接下来,我需要将这些可能的原因按照逻辑顺序整理成步骤,并给出对应的解决方法。同时,根据引用中的案例,比如密码错误和目录问题,需要特别强调这些点的检查。此外,用户提到服务器“无响应”,可能仅仅是启动失败,还可能是没有输出者卡住,因此需要涵盖这些情况。 最后,生成相关问题,帮助用户进一步排查其他可能的问题,比如防火墙设置、虚拟环境问题等。</think>针对Django开发服务器启动无响应的问题,请按照以下步骤排查: --- ### 一、确认基础环境 1. **检查当前目录** - 必须在包含`manage.py`的**项目根目录**执行命令 - 验证方式:`ls manage.py`(Linux/macOS) `dir manage.py`(Windows) 2. **验证Python环境** - 使用虚拟环境时,确认已激活:`which python` `where python` - 检查Django安装:`pip show django` --- ### 二、排查常见错误 #### 1. 端口占用问题 ```bash # 强制使用其他端口(如8080python manage.py runserver 8080 # 查看端口占用情况 netstat -ano | findstr :8000 # Windows lsof -i :8000 # Linux/macOS ``` #### 2. 数据库配置错误 - 检查`settings.py`中的数据库配置: ```python DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'your_db', 'USER': 'root', 'PASSWORD': '正确密码', # 重点检查项 'HOST': 'localhost', 'PORT': '3306' } } ``` - 确认数据库服务是否运行:`sudo service mysql status` --- ### 三、关键操作流程 1. **执行数据迁移** ```bash python manage.py makemigrations python manage.py migrate ``` 2. **清除缓存文件** 删除项目目录下的`__pycache__`文件夹和`.pyc`文件 3. **调试模式输出** ```bash python manage.py runserver --noreload ``` 通过`--noreload`参数查看完整错误堆栈 --- ### 四、进阶排查方案 #### 1. 依赖包冲突检测 ```bash pip freeze > requirements.txt pip uninstall -r requirements.txt -y pip install -r requirements.txt ``` #### 2. 防火墙/安全软件检查 - 临时关闭防火墙测试: ```bash sudo ufw disable # Ubuntu systemctl stop firewalld # CentOS ``` #### 3. 新建测试项目验证 ```bash django-admin startproject testproject cd testproject python manage.py runserver ``` --- ### 五、典型错误示例 1. **未激活虚拟环境时的包冲突** ```python ModuleNotFoundError: No module named 'MySQLdb' ``` ➔ 安装`mysqlclient`:`pip install mysqlclient` 2. **静态文件配置缺失** ```python STATIC_URL = '/static/' STATIC_ROOT = os.path.join(BASE_DIR, 'static') # 必须配置 ``` ---
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