Refernce :

https://realpython.com/blog/python/flask-by-example-part-1-project-setup/
https://stackoverflow.com/questions/44521712/heroku-commands-and-push-giving-me-cli-is-deprecated-please-reinstall-error

Project Setup

Linux (Ubuntu etc)
    ##### Intsall prerequisites of development environment libraries
  
        sudo apt-get update
    
        sudo apt-get install python-setuptools python-dev build-essential git-core -y
    
        sudo easy_install pip
      
    ##### Use virtual env, It is optional but better to use to avoid dependency conflicts

        sudo pip install virtualenv
    
        sudo pip install virtualenvwrapper
    
        mkdir ~/virtualenvs 
    
        echo "export WORKON_HOME=~/virtualenvs" >> ~/.bashrc
    
        echo "source /usr/local/bin/virtualenvwrapper.sh" >> ~/.bashrc 
    
        echo "export PIP_VIRTUALENV_BASE=~/virtualenvs" >> ~/.bashrc 
    
        source ~/.bashrc 



For Mac

    Install pip => http://pip.readthedocs.io/en/stable/installing/

    ##### virtual environment set

        pip install virtualenv
        virtualenv --version
    
        pip install virtualenvwrapper
        which virtualenvwrapper.sh
    
        mkdir ~/Workspace/virtualenvs
        which virtualenvwrapper.sh
        echo "export WORKON_HOME=~/Workspace/virtualenvs" >> ~/.bash_profile
    
        echo "export WORKON_HOME=~/Workspace/virtualenvs" >> ~/.bash_profile
        echo "source /usr/local/bin/virtualenvwrapper.sh" >> ~/.bash_profile
    
        echo "export PIP_VIRTUALENV_BASE=~/Workspace/virtualenvs" >> ~/.bash_profile
    
        source ~/.bash_profile

Virtual env wrapper commands

1. **mkvirtualenv:** To create a new environment. Example: mkvirtualenv blog
2. **deactivate:** To get out/off your virtualenv. Example: deactivate
3. **workon:** To jump back on the virtualenv. Example: workon blog
4. **rmvirtualenv:** To remove the virtualenv. Example: rmvirtualenv blog

Install project requirements

pip install -r requirements.txt

follow this to run flask project on PyCharm https://github.com/pallets/flask/blob/master/docs/cli.rst