Conda list shows a package but cannot import it

Here an issue i'm having on a conda Virtual env. I'm using ubuntu 64b guest on windows 7 host with Virtual Box.

So when i'm doing :

source activate MyVirtEnvconda list |grep visdomvisdom                    0.1.05                        0    conda-forge

Seems to be installed right ?Next step :

pythonPython 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 linuxType "help", "copyright", "credits" or "license" for more information.>>> import visdomTraceback (most recent call last):  File "<stdin>", line 1, in <module>ImportError: No module named 'visdom'>>> 

Ok, here i'm lost. Why does python does not recognize this package (and it's not the only one). I'm still in my env activated when executing python.

I'm quite new to python so perhaps i'm missing a huge mistake, please be kind :D

Thanks for your help on this one !

Update 1 :

deeplearning@deep-learning-virtual-machine:~$ source activate universe(universe) deeplearning@deep-learning-virtual-machine:~$ pythonPython 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 linuxType "help", "copyright", "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'>>>