pkg_resources.DistributionNotFound：在Django Django的== 1.8.3 1.9

Question

我使用Django Django的1.9 1.8更新后，当我键入命令

django-admin runserver 

我这一个错误：

Traceback (most recent call last): 
    File "/usr/local/bin/django-admin", line 5, in <module> 
    from pkg_resources import load_entry_point 
    File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2749, in <module> 
    working_set = WorkingSet._build_master() 
    File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 446, in _build_master 
    return cls._build_from_requirements(__requires__) 
    File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 459, in _build_from_requirements 
    dists = ws.resolve(reqs, Environment()) 
    File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 628, in resolve 
    raise DistributionNotFound(req) 
pkg_resources.DistributionNotFound: Django==1.8.3 

然后我试着键入此命令之一：

django-admin.py runserver 

我这一个错误：

Traceback (most recent call last): 
    File "/usr/local/bin/django-admin.py", line 5, in <module> 
    management.execute_from_command_line() 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 353, in execute_from_command_line 
    utility.execute() 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 345, in execute 
    self.fetch_command(subcommand).run_from_argv(self.argv) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 195, in fetch_command 
    klass = load_command_class(app_name, subcommand) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 39, in load_command_class 
    module = import_module('%s.management.commands.%s' % (app_name, name)) 
    File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module 
    __import__(name) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/runserver.py", line 16, in <module> 
    from django.db.migrations.executor import MigrationExecutor 
    File "/usr/local/lib/python2.7/dist-packages/django/db/migrations/executor.py", line 7, in <module> 
    from .loader import MigrationLoader 
    File "/usr/local/lib/python2.7/dist-packages/django/db/migrations/loader.py", line 10, in <module> 
    from django.db.migrations.recorder import MigrationRecorder 
    File "/usr/local/lib/python2.7/dist-packages/django/db/migrations/recorder.py", line 12, in <module> 
    class MigrationRecorder(object): 
    File "/usr/local/lib/python2.7/dist-packages/django/db/migrations/recorder.py", line 26, in MigrationRecorder 
    class Migration(models.Model): 
    File "/usr/local/lib/python2.7/dist-packages/django/db/migrations/recorder.py", line 27, in Migration 
    app = models.CharField(max_length=255) 
    File "/usr/local/lib/python2.7/dist-packages/django/db/models/fields/__init__.py", line 1072, in __init__ 
    super(CharField, self).__init__(*args, **kwargs) 
    File "/usr/local/lib/python2.7/dist-packages/django/db/models/fields/__init__.py", line 166, in __init__ 
    self.db_tablespace = db_tablespace or settings.DEFAULT_INDEX_TABLESPACE 
    File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 55, in __getattr__ 
    self._setup(name) 
    File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 41, in _setup 
    % (desc, ENVIRONMENT_VARIABLE)) 
django.core.exceptions.ImproperlyConfigured: Requested setting DEFAULT_INDEX_TABLESPACE, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings. 

我尝试卸载并安装Django。但我仍然有这个错误。希望有人能帮助我。谢谢

Answer 1

你通常不应该使用django-admin，除非你做django-admin startproject。

在创建项目后，使用manage.py来运行开发服务器会更容易，因为它负责为您设置路径和设置模块。

./manage.py runserver 

查看the docs了解更多信息。

Answer 2

也许你使用过另一个python版本？现在是python 2.7，看来你没有为python2.7正确安装django。您可以尝试

python3 manage.py runserver 

在Ubuntu的使用python3（它在默认情况下并accessibler安装了python3），或尝试定义如何与另一个Python版本运行它。