Python + Flask

Python 3 + Flask

Install Python3

Install pip

Install virtualenv

• pip install virtualenv
• pip install virtualenvwrapper-win

Create Project on Windows

• mkvirtualenv HelloWorld
• create directory for work
• mkdir HelloWorld
• cd HelloWorld
• setprojectdir .

Delete project

• rmvirtualenv HelloWorld

Use Project

• workon HelloWorld

Leave project

• deactivate

Install Flask

• pip install Flask 

Show URLS

• python

• from helloworld import app

• app.url_map 

Start Server

1. python
• from helloworld import app
2. python helloworld.py

Debug

• app.run(debug=True)

Project Structure

HelloWorld

- __init__.py   empty file

- static  folder to contain js, css, ect

- templates

- helloworld.py

• QUICK GUIDE

Create Project on Windows

• mkvirtualenv HelloWorld
• create directory for work
• mkdir HelloWorld
• cd HelloWorld
• setprojectdir .

Install Flask

• pip install Flask 

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New version

3. Open the comandline and Run pip install virtualenv like so

            C:\>pip install virtualenv

4. Create a directory called myapp

            C:\>mkdir myapp

5. Run

            C:\>cd myapp

6. Run virtualenv Flask

          C:\myapp>virtualenv Flask

7. Run

           i. C:\myapp>cd  /Flask/Scripts

8. Run

         C:\myapp\Flask\Scripts>pip install flask

10. Now go to the command prompt and run

        C:\myapp\Flask\Scripts>activate

11. Run

      i. (flask) C:\myapp\Flask\Scripts>cd ..

      ii. (flask) C:\myapp\Flask>cd ..

iii. (flask) C:\myapp>cd app

       iii. And Run (flask) C:\myapp\app>python index.py