渲染时出现ImportError：没有名为app的模块
我在 pythonanywhere 上运行一个推特应用，这个应用在本地开发服务器上运行得很好，但当我在 pythonanywhere 上运行时却出现了这个错误：
2013-01-30 20:04:12,843 :Traceback (most recent call last):
2013-01-30 20:04:12,843 : File "/usr/local/lib/python2.7/site-packages/django/core/handlers/wsgi.py", line 272, in __call__
2013-01-30 20:04:12,843 : response = self.get_response(request)
2013-01-30 20:04:12,844 : File "/usr/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 169, in get_response
2013-01-30 20:04:12,844 : response = self.handle_uncaught_exception(request, resolver, sys.exc_info())
2013-01-30 20:04:12,844 : File "/usr/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 203, in handle_uncaught_exception
2013-01-30 20:04:12,844 : return debug.technical_500_response(request, *exc_info)
2013-01-30 20:04:12,844 : File "/usr/local/lib/python2.7/site-packages/django/views/debug.py", line 59, in technical_500_response
2013-01-30 20:04:12,845 : html = reporter.get_traceback_html()
2013-01-30 20:04:12,845 : File "/usr/local/lib/python2.7/site-packages/django/views/debug.py", line 151, in get_traceback_html
2013-01-30 20:04:12,845 : return t.render(c)
2013-01-30 20:04:12,845 : File "/usr/local/lib/python2.7/site-packages/django/template/base.py", line 123, in render
2013-01-30 20:04:12,845 : return self._render(context)
2013-01-30 20:04:12,845 : File "/usr/local/lib/python2.7/site-packages/django/template/base.py", line 117, in _render
2013-01-30 20:04:12,845 : return self.nodelist.render(context)
2013-01-30 20:04:12,845 : File "/usr/local/lib/python2.7/site-packages/django/template/base.py", line 744, in render
2013-01-30 20:04:12,846 : bits.append(self.render_node(node, context))
2013-01-30 20:04:12,846 : File "/usr/local/lib/python2.7/site-packages/django/template/debug.py", line 73, in render_node
2013-01-30 20:04:12,846 : result = node.render(context)
2013-01-30 20:04:12,846 : File "/usr/local/lib/python2.7/site-packages/django/template/debug.py", line 90, in render
2013-01-30 20:04:12,846 : output = self.filter_expression.resolve(context)
2013-01-30 20:04:12,846 : File "/usr/local/lib/python2.7/site-packages/django/template/base.py", line 536, in resolve
2013-01-30 20:04:12,847 : new_obj = func(obj, *arg_vals)
2013-01-30 20:04:12,847 : File "/usr/local/lib/python2.7/site-packages/django/template/defaultfilters.py", line 695, in date
2013-01-30 20:04:12,847 : return format(value, arg)
2013-01-30 20:04:12,847 : File "/usr/local/lib/python2.7/site-packages/django/utils/dateformat.py", line 285, in format
2013-01-30 20:04:12,847 : return df.format(format_string)
2013-01-30 20:04:12,847 : File "/usr/local/lib/python2.7/site-packages/django/utils/dateformat.py", line 30, in format
2013-01-30 20:04:12,847 : pieces.append(force_unicode(getattr(self, piece)()))
2013-01-30 20:04:12,848 : File "/usr/local/lib/python2.7/site-packages/django/utils/dateformat.py", line 191, in r
2013-01-30 20:04:12,848 : return self.format('D, j M Y H:i:s O')
2013-01-30 20:04:12,848 : File "/usr/local/lib/python2.7/site-packages/django/utils/dateformat.py", line 30, in format
2013-01-30 20:04:12,848 : pieces.append(force_unicode(getattr(self, piece)()))
2013-01-30 20:04:12,848 : File "/usr/local/lib/python2.7/site-packages/django/utils/encoding.py", line 71, in force_unicode
2013-01-30 20:04:12,848 : s = unicode(s)
2013-01-30 20:04:12,848 : File "/usr/local/lib/python2.7/site-packages/django/utils/functional.py", line 206, in __unicode_cast
2013-01-30 20:04:12,848 : return self.__func(*self.__args, **self.__kw)
2013-01-30 20:04:12,849 : File "/usr/local/lib/python2.7/site-packages/django/utils/translation/__init__.py", line 81, in ugettext
2013-01-30 20:04:12,849 : return _trans.ugettext(message)
2013-01-30 20:04:12,849 : File "/usr/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py", line 286, in ugettext
2013-01-30 20:04:12,849 : return do_translate(message, 'ugettext')
2013-01-30 20:04:12,849 : File "/usr/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py", line 276, in do_translate
2013-01-30 20:04:12,849 : _default = translation(settings.LANGUAGE_CODE)
2013-01-30 20:04:12,849 : File "/usr/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py", line 185, in translation
2013-01-30 20:04:12,850 : default_translation = _fetch(settings.LANGUAGE_CODE)
2013-01-30 20:04:12,850 : File "/usr/local/lib/python2.7/site-packages/django/utils/translation/trans_real.py", line 162, in _fetch
2013-01-30 20:04:12,850 : app = import_module(appname)
2013-01-30 20:04:12,850 : File "/usr/local/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
2013-01-30 20:04:12,850 : __import__(name)
2013-01-30 20:04:12,850 :django.template.base.TemplateSyntaxError: Caught ImportError while rendering: No module named twitterApp
这个错误可能是什么原因造成的？我应该去哪里查找问题？
2 个回答
1
我在我的应用程序中也遇到了完全一样的问题……问题的根源是文件权限。如果应用程序的文件夹没有执行权限，就无法正常导入。
3
这可能是因为在pythonanywhere上wsgi.py的配置问题。在本地环境中，Django能够很好地处理Python路径和静态文件。
根据pythonanywhere的部署文档中的这一部分：
- 在wsgi.py中添加正确的路径到sys.path
假设你的Django设置文件在'/home/my_username/projects/my_project/settings.py'这个位置。
path = '/home/my_username/projects'
if path not in sys.path:
sys.path.append(path)
os.environ['DJANGO_SETTINGS_MODULE'] = 'my_project.settings'
from my_project.myapp.models import Kitchen, Sink
请注意：my_project前缀是必须的。
2. 静态文件应该处理得很好。
from django.contrib.staticfiles.urls import staticfiles_urlpatterns
urlpatterns += staticfiles_urlpatterns()
根据文档检查这两点应该能解决问题。