django -admin problem "command not found"

I am new to Python, so the question below could be very stupid but critical for me to get an answer to move forward.....your help will definitely be appreciated. Here we go, 1. I installed Django-1.7 in an env;==> 2. Then I run "Django -admin startproject website .", it returns "bash: Django: command not found";==> 3. I run "echo '' >> ~/.bashrc && echo 'source' >> ~/.bashrc" and "source". But still get "command not found".

What did I miss? Thanks.

"". lowercase d, no spaces.