从蟒蛇2.7创建的Python3环境失败

Question

我安装了Anaconda 2，所以我的python基础版本是2.7。我可以使用以下命令创建各种虚拟环境：

conda create --name new_27 python=2.7

在激活它之后，环境就像预期的那样工作。但是如果我安装python版本3.x，它就会失败。安装没有任何警告，我可以激活它。但是在那里运行任何东西都会产生以下错误消息(无论我运行什么，我总是得到相同的错误消息)

(py36) C:\Users\ist>pip list
Error processing line 1 of C:\ProgramData\Anaconda2\Lib\site-packages\configparser-3.5.0-py2.7-nspkg.pth:

Failed to import the site module
Traceback (most recent call last):
  File "C:\ProgramData\Anaconda2\envs\py36\lib\site.py", line 168, in addpackage
    exec(line)
  File "<string>", line 1, in <module>
  File "C:\ProgramData\Anaconda2\envs\py36\lib\types.py", line 171, in <module>
    import functools as _functools
  File "C:\ProgramData\Anaconda2\envs\py36\lib\functools.py", line 21, in <module>
    from collections import namedtuple
  File "C:\ProgramData\Anaconda2\envs\py36\lib\collections\__init__.py", line 32, in <module>
    from reprlib import recursive_repr as _recursive_repr
  File "C:\ProgramData\Anaconda2\Lib\site-packages\reprlib\__init__.py", line 7, in <module>
    raise ImportError('This package should not be accessible on Python 3. '
ImportError: This package should not be accessible on Python 3. Either you are trying to run from the python-future src folder or your installation of python-future is corrupted.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\ProgramData\Anaconda2\Lib\site-packages\site.py", line 73, in <module>
    __boot()
  File "C:\ProgramData\Anaconda2\Lib\site-packages\site.py", line 47, in __boot
    addsitedir(item)
  File "C:\ProgramData\Anaconda2\envs\py36\lib\site.py", line 207, in addsitedir
    addpackage(sitedir, name, known_paths)
  File "C:\ProgramData\Anaconda2\envs\py36\lib\site.py", line 178, in addpackage
    import traceback
  File "C:\ProgramData\Anaconda2\envs\py36\lib\traceback.py", line 3, in <module>
    import collections
  File "C:\ProgramData\Anaconda2\envs\py36\lib\collections\__init__.py", line 32, in <module>
    from reprlib import recursive_repr as _recursive_repr
  File "C:\ProgramData\Anaconda2\Lib\site-packages\reprlib\__init__.py", line 7, in <module>
    raise ImportError('This package should not be accessible on Python 3. '
ImportError: This package should not be accessible on Python 3. Either you are trying to run from the python-future src folder or your installation of python-future is corrupted.