* Python Flask test install and running

Python3 Flask Example

# - Install
  > 1. python3 download -> https://www.python.org/downloads/ 
  > 2. ver 확인 -> python3 --version
  > 3. pip 설치 -> pip3 install --upgrade pip
  > 4. ver 확인 -> pip3 --version
  
# - Running
  > 1. make myflask dir -> /Users/soulchild/Documents/myflask
  > 2. app.py coding 
  > 3. template file create(html)
  > 4. web server running -> flask run
  > 5. http://127.0.0.1:5000/ -> localhost default port

reference : https://www.freecodecamp.org/news/structuring-a-flask-restplus-web-service-for-production-builds-c2ec676de563/