Started a django server from inside Pycharm, but now I cannot turn it off
First kill django server using 
sudo lsof -t -i tcp:8000 | xargs kill -9
Whatever PORT you are using you can replace with 8000 with it.
Right click on project main directory(Having Setting.py) ->Mark
directory as-> Source Root
Edit Configuration Working Directory: leave blank 

And then click on run Button.
It worked for me. I am using linux system, Not sure for Windows but this should work for windows too.
I'm new to Pycharm IDE. Previously have been using Atom editor and a shell.  I am working in Windows 7.
Tonight I created a small Django project in Pycharm.  I used the "Tools:  Run manage.py task" menu option.  Then I ran runserver from the terminal it opened.
This launched my server at http://127.0.0.1:8000, as expected.
But later I accidentally closed the manage.py window pane in pycharm ide.  The server continues to run.  Even after I closed Pycharm,  the server remains running. 
How do I stop it?!?!  Embarassing.