Flask: Making my first web site

[snippsat]

I guess I'll have to clone the whole code_snippets repository.

I told in in post #2 about DownGit or cooler GitZip where can download individual files and folder.

After cloning to my project folder starting run.py and trying to open a web site leads to this error

You most link to what where you are,should not be necessary to mention this

Link if i test eg 08-Posts.
Here a run,i delete database site.db so i can make new one.

G:\all_flask\08-Posts
λ ls
flaskblog/  run.py

# Make database site.db
G:\all_flask\08-Posts
λ ptpython
>>> from flaskblog import db
>>> db.create_all()
>>> exit()

Add line 2:

app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite://site.db'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False

Test run:

G:\all_flask\08-Posts
λ python run.py
 * Serving Flask app "flaskblog" (lazy loading)
 * Environment: production
   WARNING: Do not use the development server in a production environment.
   Use a production WSGI server instead.
 * Debug mode: on
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: 334-187-997
 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
127.0.0.1 - - [14/Aug/2019 16:19:21] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [14/Aug/2019 16:19:21] "GET /static/main.css HTTP/1.1" 200 -
127.0.0.1 - - [14/Aug/2019 16:19:21] "GET /favicon.ico HTTP/1.1" 404 -
127.0.0.1 - - [14/Aug/2019 16:20:09] "GET /about HTTP/1.1" 200 -
127.0.0.1 - - [14/Aug/2019 16:20:10] "GET /home HTTP/1.1" 200 -
127.0.0.1 - - [14/Aug/2019 16:20:13] "GET /register HTTP/1.1" 200 -
127.0.0.1 - - [14/Aug/2019 16:20:28] "POST /register HTTP/1.1" 302 -
127.0.0.1 - - [14/Aug/2019 16:20:28] "GET /login HTTP/1.1" 200 -
127.0.0.1 - - [14/Aug/2019 16:20:32] "GET /login HTTP/1.1" 200 -

No error site work and i can register a new user,and New Post message get added to database.