/Stock

Flask Python Web Service Using nsetools

Primary LanguagePython

Stocks - A Python Environment

Build Status

A Sample Project to describe, or uses the pyton environment extensively

  • pyenv virtualenvironment
  • Ansible provisioning / setup
  • Unit Tests
  • Travis Ci Integration

Install Dependencies

  • preferred to have run ./local_build.sh but to be precise, run pip intall -r requirements.txt, requirements.txt contains the dependencies for the project.

Run Application

  • To Run the App python stock_market.py, uses app.run(*args) and start the service
  • losers and gainers endpoint also supports json, request json by passing query parameter json=t or json=true

Run Ansible Script

ansible-playbook -i 'vagrant@ip', setup.yml # Running for remote/vagrant maching 
ansible-playbook -i 'localhost', setup.yml -c local # Running for remote/vagrant maching #To Run locally

Run Unit Tests



pattern not required if you have tests with convention test_*.py


To Break localbuild if any of linter/ jobs fails


Add this to the localbuild.sh file




or set -e in terminal. This exits the script if any command returns non-zero value or FAILS (echo $?).


Summary


This project mostly uses, exposes you to the following,


    

  • Need For Environment?

      

    • conflicts across libraries || python versions
      • 

    • print "" fails in python3+
      • 

    • generator.next() fails in python3+
      • 

    

    • 

  • pyenv

      

    • pyenv versions lists all python versions available (2.7, 3.2, 3.4.1 ...)
      • 

    • pyenv shell - to activate a specific python version (PYENV_VERSION)
      • 

    

    • 

  • pyenv virtualenv

      

    • install python version (pyenv install 2.7)
      • 

    • install virtualenvironment (pyenv virtualenv 2.7 stock_env)
      • 

    • pyenv activate to activate virtualenv or put virtualenv name in .python-version file
      • 

    

    • 

  • pip manages the dependency modules

      

    • pip list show all modules
      • 

    • pip freeze > requirements.txt to update requirements file.
      • 

    

    • 

  • Tests... Unit Tests... TDD! Try to Have more Tests/Test Coverage. No Documentation :)
    • 

  • linters

      

    • pep8, pyflakes, pylint
      • 

    

    • 

  • basic service with flask
    • 

  • ansible to setup projects
    • 

  • file, name, main ...
    • 

  • PYTHONVERBOSE, PYTHONPATH

      

    • export PYTHONVERBOSE="bla" to have more debugging info
      • 

    • unset PYTHONVERBOSE to remove debugging info
      • 

    

    • 



Reference: