Setup Flask Project
    Prerequisite    Python    What Is Flask ?    Flask is a lightweight Web framework written in Python. It is developed by  Armin Ronacher. Flask is based on the Werkzeug WSGI toolkit  and Jinja2  template engine   Setup Development Environment    First Install virtualenv  virtualenv  is a virtual python environment builder.virtualenv    is used to manage python packages for different projects. Using virtualenv allows you to avoid installing python packages globally which could break system tools or other projects.   Install the virtualenv using the following command.This command needs administrator privileges    # pip install virtualenv  After installing the virtualenv  .    Make Folder     create new folder using the following command     # mkdir flaskdemo      change to the current created directory/folder    # cd flaskdemo     Create Virtual Environment In Folder     Now we will create a virtualenv .   The commands below will create a new director...