django - ubuntu 13.04 升级后没有模块名称日期时间

Question

刚从 ubuntu 12.10 升级到 13.04 并在 virtualenv 中运行 django 站点时得到这个

(virtualenv)sysadmin@ubuntu:~/webapps/devsite/djangosite$ ./manage.py runserver
Traceback (most recent call last):
  File "./manage.py", line 2, in <module>
    from django.core.management import execute_manager
  File "/home/sysadmin/webapps/devsite/virtualenv/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 7, in <module>
    from django.core.management.base import BaseCommand, CommandError, handle_default_options
  File "/home/sysadmin/webapps/devsite/virtualenv/local/lib/python2.7/site-packages/django/core/management/base.py", line 14, in <module>
    from django.utils.encoding import smart_str
  File "/home/sysadmin/webapps/devsite/virtualenv/local/lib/python2.7/site-packages/django/utils/encoding.py", line 4, in <module>
    import datetime
ImportError: No module named datetime

Answer 1

就这样

virtualenv /home/sysadmin/webapps/devsite/virtualenv/

这将在 VirtualEnv 中重新安装 Python，之后它将正常工作(并且您不需要重新安装库)。

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更新:当我从 14.04 升级到 14.10 后处理同样的问题时，virtualenv 不想覆盖现有的 Python 符号链接(symbolic link)，所以我必须先删除它(在这个例子中是 rm/home/sysadmin/webapps/devsite/virtualenv/python)