python – Conda列表显示一个包但无法导入它

所以当我在做的时候：

source activate MyVirtEnv
conda list |grep visdom
visdom                    0.1.05                        0    conda-forge

好像安装得对吗？
下一步 ：

python
Python 3.5.3 |Anaconda custom (64-bit)| (default,Mar  6 2017,11:58:13) 
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux
Type "help","copyright","credits" or "license" for more information.
>>> import visdom
Traceback (most recent call last):
  File "<stdin>",line 1,in <module>
ImportError: No module named 'visdom'
>>>

好的,我在这里迷路了.为什么python不能识别这个包(而且它不是唯一的包).执行python时我仍然在激活我的env.

我对python很新,所以也许我错过了一个巨大的错误,请善待：D

感谢您对此的帮助！

更新1：

deeplearning@deep-learning-virtual-machine:~$source activate universe
(universe) deeplearning@deep-learning-virtual-machine:~$python
Python 3.5.3 |Anaconda custom (64-bit)| (default,"credits" or "license" for more information.
>>> import sys
>>> sys.path
['','/home/deeplearning/anaconda3/envs/universe/lib/python35.zip','/home/deeplearning/anaconda3/envs/universe/lib/python3.5','/home/deeplearning/anaconda3/envs/universe/lib/python3.5/plat-linux','/home/deeplearning/anaconda3/envs/universe/lib/python3.5/lib-dynload','/home/deeplearning/anaconda3/envs/universe/lib/python3.5/site-packages','/home/deeplearning/anaconda3/envs/universe/lib/python3.5/site-packages/Sphinx-1.5.6-py3.5.egg','/home/deeplearning/gym','/home/deeplearning/anaconda3/envs/universe/lib/python3.5/site-packages/torchvision-0.1.9-py3.5.egg']
>>> sys.executable
'/home/deeplearning/anaconda3/envs/universe/bin/python'
>>>