Question

我正在进行一个项目。在这个项目中，我必须更改一些他们通过XML代码实现的报告。当我使用＆＃34; python manage.py runserver＆＃34运行我的项目时，它运行真实，我可以更改我的XML代码并查看chrome上的HTML文件但是当我想查看报告的PDF文件时出现错误那说：

>"IndexError, your list is out of range"

所以我开始调试它，在这个过程中调试器说

＆＃34;来自django.db.models.constants导入LOOKUP_SEP没有名为constants＆＃34;的模块。

这是完整的追溯：

>Unhandled exception in thread started by <_pydev_bundle.pydev_monkey._NewThreadStartupWithTrace instance at 0x7f45ea1f3b48>
Traceback (most recent call last):
  File "/home/rajabi/pycharm-community-2017.1.4/helpers/pydev/_pydev_bundle/pydev_monkey.py", line 589, in __call__
    return self.original_func(*self.args, **self.kwargs)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/runserver.py", line 91, in inner_run
    self.validate(display_num_errors=True)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 266, in validate
    num_errors = get_validation_errors(s, app)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/validation.py", line 30, in get_validation_errors
    for (app_name, error) in get_app_errors().items():
  File "/usr/local/lib/python2.7/dist-packages/django/db/models/loading.py", line 158, in get_app_errors
    self._populate()
  File "/usr/local/lib/python2.7/dist-packages/django/db/models/loading.py", line 67, in _populate
    self.load_app(app_name)
  File "/usr/local/lib/python2.7/dist-packages/django/db/models/loading.py", line 88, in load_app
    models = import_module('.models', app_name)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/home/rajabi/Desktop/tina/clone-2017-07-05/rtis/src/saed/activities/models.py", line 7, in <module>
    from saed.activities.base import models
  File "/home/rajabi/Desktop/tina/clone-2017-07-05/rtis/src/saed/activities/base/models.py", line 16, in <module>
    from model_utils.managers import InheritanceManager
  File "/usr/local/lib/python2.7/dist-packages/model_utils/managers.py", line 13, in <module>
    from django.db.models.constants import LOOKUP_SEP
ImportError: No module named constants

我该怎么办？

的django == 1.4
蟒== 2.7.12
tastypie == 0.9.16

我无法改变我的django和python版本。

Answer 1

回溯的这一部分向您显示错误来自django-model-utils。

  File "/usr/local/lib/python2.7/dist-packages/model_utils/managers.py", line 13, in <module>
    from django.db.models.constants import LOOKUP_SEP

release notes表示在版本3.0中删除了对Django 1.4的支持。

您可以尝试安装早期版本的django-model-utils，但实际上您应该升级Django。 Django 1.4已经过时且不安全。

没有名为constants的模块错误

1 个答案: