This method simple but important. Example in your project dir is like this:

project_dir/
           __init__.py
           __init__.pyc
           something.py
           something.pyc
           ...
           core/
               __init__.py
               __init__.pyc
               build.py
               build.pyc

Add this configurations in your settings.py

This configurations is if you work with smtp.gmail.com, other smtp is similiar with configurations.

SimplyGrey is a simple, easy to use theme for Jekyll that compromises of mainly grey colours. A lot of people enjoy the simplistic look of grey and also find it easier to read.

You’ll find this post in your _posts directory. Go ahead and edit it and re-build the site to see your changes. You can rebuild the site in many different ways, but the most common way is to run jekyll serve, which launches a web server and auto-regenerates your site when a file is updated.