python - 安装Django 1.9导致的pip错误

Question

似乎新的 django 坏了，导致 pip 出错。我安装了 django 并出现语法错误:

cchilders@main:~/projects$ sudo pip install django
Downloading/unpacking django
  Downloading Django-1.9-py2.py3-none-any.whl (6.6MB): 6.6MB downloaded
Installing collected packages: django
Compiling /tmp/pip-build-3WZoMx/django/django/conf/app_template/apps.py ...
  File "/tmp/pip-build-3WZoMx/django/django/conf/app_template/apps.py", line 4
    class {{ camel_case_app_name }}Config(AppConfig):
          ^
SyntaxError: invalid syntax

Compiling /tmp/pip-build-3WZoMx/django/django/conf/app_template/models.py ...
  File "/tmp/pip-build-3WZoMx/django/django/conf/app_template/models.py", line 1
    {{ unicode_literals }}from django.db import models
                             ^
SyntaxError: invalid syntax

Successfully installed django
Cleaning up...

现在pip不行了，我试过卸载新的django，卸载pip，然后重新安装pip，无济于事...

cchilders@main:~/projects$ pip freeze
Exception:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 122, in main
    status = self.run(options, args)
  File "/usr/lib/python2.7/dist-packages/pip/commands/freeze.py", line 74, in run
    req = pip.FrozenRequirement.from_dist(dist, dependency_links, find_tags=find_tags)
  File "/usr/lib/python2.7/dist-packages/pip/__init__.py", line 299, in from_dist
    assert len(specs) == 1 and specs[0][0] == '=='
AssertionError

在/home/cchilders/.pip/pip.log 中存储失败的调试日志

因为我已经删除了 django 1.9，我该怎么做才能恢复我的机器？谢谢

Answer 1

这看起来像 Django 1.9 发行说明中提到的 setuptools 问题:https://docs.djangoproject.com/en/1.9/releases/1.9/#syntaxerror-when-installing-django-setuptools-5-5-x

在运行 pip install django 之前尝试运行 pip install -U pip