title: Installation of ivisual module for Python 3.6 under Anaconda
body: <p>I have installed ivisual package from PyPi and then in the directory of Anaconda I ran the command 'import ivisual'. CMD showed following message</p>
  
  <pre><code>&gt;&gt;&gt; import ivisual
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
    File "C:\Users\ratangd\Anaconda3\lib\site-packages\ivisual\__init__.py", line 1, in &lt;module&gt;
      from .visual import *
    File "C:\Users\ratangd\Anaconda3\lib\site-packages\ivisual\visual.py", line 32, in &lt;module&gt;
      import ujson
  ModuleNotFoundError: No module named 'ujson'
  </code></pre>
  
  <p>After this I installed ujson module and then again tried <code>import ivisual</code>
  Following message was displayed with Command line</p>
  
  <pre><code>&lt;IPython.core.display.HTML object&gt;
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
    File "C:\Users\ratangd\Anaconda3\lib\site-packages\ivisual\__init__.py", line 1, in &lt;module&gt;
      from .visual import *
    File "C:\Users\ratangd\Anaconda3\lib\site-packages\ivisual\visual.py", line 562, in &lt;module&gt;
      get_ipython().kernel.comm_manager.register_target('glow', GlowWidget)
  AttributeError: 'InteractiveShell' object has no attribute 'kernel'
  In :
  </code></pre>
  
  <p>How to resolve this problem, as I want to use this <code>import ivisual</code> without any problem for Vpython related code?</p>