title: How to run Tensorboard from python scipt in virtualenv?
body: <p>Tensorboard should be started from commnad line like that:</p>
  
  <pre><code>tensorboard --logdir=path
  </code></pre>
  
  <p>I need to run it from code. Until now I use this:</p>
  
  <pre><code>import os
  os.system('tensorboard --logdir=' + path)
  </code></pre>
  
  <p>However tensorboard do not start because is not included in the system path. I use PyCharm with virtualenv on windows. I don't want to change system paths so the only option is to run it from virtualenv. How to do this? </p>