python 2.7 - How to visualize dask graphs? -

i following official docs, however, getting error during import.

f:\>python python 2.7.11 |anaconda custom (64-bit)| (default, feb 16 2016, 09:58:36)[msc v.1500 64 bit (amd64)] on win32 type "help", "copyright", "credits" or "license" more information. anaconda brought continuum analytics. please check out: http://continuum.io/thanks , https://anaconda.org  >>> dask.dot import dot_graph  traceback (most recent call last):   file "<stdin>", line 1, in <module>   file "c:\anaconda\lib\site-packages\dask\dot.py", line 11, in <module>     graphviz = import_required("graphviz", "drawing dask graphs requires "   file "c:\anaconda\lib\site-packages\dask\utils.py", line 70, in import_required raise runtimeerror(error_msg) runtimeerror: drawing dask graphs requires `graphviz` python library , `graphviz` system library installed. >>> 

i running anaconda , have installed graphviz.

c:\>conda install graphviz using anaconda api: https://api.anaconda.org fetching package metadata ......... solving package specifications: ..........  # requested packages installed. # packages in environment @ c:\anaconda: # graphviz                  2.38.0                        2 

i've got directory c:\anaconda\library\bin\graphviz bunch of .exe, .dll , other files inside. there in path variable:

f:\>where dot c:\anaconda\library\bin\dot.bat 

here content of file (c:\anaconda\library\bin\dot.bat):

@echo off  %~dp0.\graphviz\dot.exe %*  

i have dask 0.11.0 installed:

f:\>conda list dask # packages in environment @ c:\anaconda: # using anaconda api: https://api.anaconda.org dask                      0.11.0                   py27_0 

these errors appear both in windows , in linux (ubuntu 16.04 recent updates).

what else require?

i'm not using anaconda, generaly if wish use graphviz should:

1. install graphviz python module (probably pip install graphviz).
2. download , install graphviz software.