ndb :(来自google.appengine.ext import ndb)

数据存储区:(来自gcloud import datastore)

有什么不同？我已经看到它们都使用了,并暗示它们都将数据保存到谷歌数据存储区.为什么有两种不同的实现？

Ubuntu 16.04 LTS,试图用pip安装cpickle.我搜索了一下,还没找到任何有用的东西.

PYTHONPATH未设定.

错误信息

user@hostname:~$ sudo -H pip3 install cpickle
Collecting cpickle
  Using cached cpickle-0.5.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/usr/lib/python3.5/tokenize.py", line 454, in open
        buffer = _builtin_open(filename, 'rb')
    FileNotFoundError: [Errno 2] No such file or directory: '/tmp/pip-build-wn926hef/cpickle/setup.py'

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-wn926hef/cpickle/
You are using pip version 8.1.1, however version 9.0.1 is available.
You should consider upgrading …