Full Stack Web Development with Flask.

Real Python

Last update: Jan 6, 2023

Related tags

Flask discover-flask

Overview

Discover Flask

Full Stack Web Development with Flask.

http://discoverflask.com

Flask is a micro web framework powered by Python. Its API is fairly small, making it easy to learn and simple to use. But don't let this fool you, as it's powerful enough to support enterprise-level applications handling large amounts of traffic. You can start small with an app contained entirely in one file, then slowly scale up to multiple files and folders in a well-structured manner as your site becomes more and more complex.

Please note: This is a tutorial series, which is still in progress. The source code is not meant to be used until the end of the series.

Support

Please help us keep this free, open source project going. Purchase the Real Python course. Provide gratitude through Gratipay. Star this repo. Tweet about it. Anything helps. Thank you!

Part	Title	Git Tag
1	Setting Up a Static Site (blog post)	part1
2	Creating a login page (blog post)	part2
3	User Authentication	part3
4	Template Inheritance	part4
5	Databases	part5
6	List Comprehensions	N/A
7	Unit Tests	part7
8	Deploying to Heroku	part8
9	SQLAlchemy	part9
10	Configuration	part10
11	Secret Key	part11
12	Heroku Configuration Settings	part12
13	Heroku Postgres Setup	part13
14	Local PostgreSQL Setup	part14
15	Managing Database Migrations	part15
16	Database Downgrades with Flask-Migrate/Alembic	part16
17	Virtualenvwrapper	part17
18	Password Hashing	part18
19	Blueprints	part19
20	Blueprints Redux	part20
21	User Authentication (part 2)	part21
22	Unit Testing with Flask-Testing	part22
23	Session Management with Flask-Login	part23
24	Testing User Login and Logout	part24
25	User Registration (functionality and unit tests)	part25
26	Finalize Messaging System	part26
27	Test Coverage with coverage.py	part27
28	Flask Testing!	part28
29	Flask Testing (increase test coverage)	part29
30	Continuous Integration	part30

You can view the entire video playlist here.

Links

Nice Vagrant Instance for Discover Flask, for use with PyJenkinsCI - a test Jenkins Continuous Integration (CI) for Python projects, compatible with Mac OSX and Ubuntu systems. (Thanks, Apollo!)
Awesome project, based on the series -> HomeCenter

Comments

test cases using () deprecated

For example, self.assertTrue(current_user.is_active()) is used throughout tests. However, self.assertTrue(current_user.is_active) is the correct statement.

Link for reference: https://stackoverflow.com/questions/32750526/flask-login-raises-typeerror-bool-object-is-not-callable-when-trying-to-overr

Thanks

opened by leslie-alldridge 3
Confusion

In app.py

--connect to database def connect_db(): return sqlite3.connect('posts.db')

Do we need to include this? Aren't we already exporting it to DATABASE_URL='sql:///posts.db' and we are using SQLAlchemy for this project.I think we should comment this line.

opened by ragmha 1
Sample material does not match the videos

Hi,

I started following Part-1 and only found that the downladable examples are different than those used in the course. and the material is about 7 years old.

Are there any plans to modernate the material to the latest Visual Code and Python 3.9 ?

Best, Mickey

opened by tadam98 2

How to make a database for each html page in my web application? flask, python, html,sql

I'm currently building a flask web application using Microsoft Azure. The basic idea is just a blog for my school which I'm doing as a project. For this web application, I have two html pages. A home page where people just chat and a calendar page. yes not the best ideas but it's sufficient. What i'm wondering is how i select a database for each html page. Since it's like a forum blog type page, I already have the form and the script for that ready but when I enter something, it shows up for all the pages. I've made two databases, database.db for the home page and calendar.db for the calendar page. So far, everything i've been submitting into the forms is going into database.db and not calendar.db for the calendar.html page. So, i've made the database for the calendar page and made a table for it but can't seem to connect it to calendar.db.

Here is my code:

app.py


from flask_cors import CORS

from models import create_post, get_posts





app = Flask(__name__)



CORS(app)



u/app.route('/', methods=['GET','POST'])

def index():



if request.method == 'GET':

pass

if request.method == 'POST':

name = request.form.get('name')

post = request.form.get('post')

create_post(name, post)



posts = get_posts()



return render_template('index.html', posts=posts)



u/app.route('/calendar.html', methods=['GET','POST'])

def calendar():



if request.method == 'GET':

pass

if request.method == 'POST':

name = request.form.get('name')

post = request.form.get('post')

create_post(name, post)



posts = get_posts()



return render_template('calendar.html', posts=posts)



if __name__ == '__main__':

app.run(host="0.0.0.0", port=80)

and then models.py


import sqlite3 as sql

from os import path



ROOT = path.dirname(path.relpath((__file__)))



def create_post(name,content):

con = sql.connect(path.join(ROOT, 'database.db'))

cur = con.cursor()

cur.execute('insert into posts (name, content) values(?, ?)', (name, content))

con.commit()

con.close()



def get_posts():

con = sql.connect(path.join(ROOT, 'database.db'))

cur = con.cursor()

cur.execute('select * from posts')

posts = cur.fetchall()

return posts

and finally my html page for the calendar :


<!doctype html>

<center>



<head style="color:green; font-family: 'Times New Roman', Times, serif;font-size: 400px;">

<link rel="stylesheet" href="styles.css">



<font size = "+100">Important Events Coming Up</font>

<title>EcoNet</title>

</head>

<br>

<br>

<br>



<br>

<table>

<tr>

<th>

<a href="/">Parent Blog</a>

</th>

<th>

<a href="meeting.html">Teachers to Parents</a>

</th>

</tr>



</table>



<table >

<thead>



<tr>



<td >Mon</td>

<td>Tue</td>

<td>Wed</td>

<td>Thu</td>

<td>Fri</td>

<td>Sat</td>

<td>Sun</td>



</tr>



</thead>



<tbody>



<tr>

<td >29</td>

<td >30</td>

<td >31</td>

<td>1</td>

<td>2</td>

<td>3</td>

<td>4</td>

</tr>



<tr>

<td>5</td>

<td>6</td>

<td>7</td>

<td>8</td>

<td>9</td>

<td>10</td>

<td>11</td>

</tr>



<tr>

<td>12</td>

<td>13</td>

<td>14</td>

<td>15</td>

<td>16</td>

<td>17</td>

<td ></td>

</tr>



<tr>

<td>19</td>

<td>20</td>

<td>21</td>

<td>22</td>

<td>23</td>

<td>24</td>

<td>25</td>

</tr>



<tr>

<td>26</td>

<td>27</td>

<td>28</td>

<td>29</td>

<td>30</td>

<td>31</td>

<td >1</td>

</tr>



</tbody>





<h1 style="color:teal; font-family: 'Times New Roman', Times, serif;"> Type Down Below To Remind Anyone of Where and When the Gathering Will Happen</h1>





<body style = "background-color:lightgreen;">

<form action='/calendar.html' method='post'>

<input placeholder='Name' name='name'>

<input placeholder='Post Content' name='post'>

<input type='submit' value='Submit'>

</form>

{% for post in posts %}

<div>

{{ post[1] + ': ' + post[2] }}

</div>

{% endfor %}

</body>

</center>

</html>

my html is not the best.

It would be great if you guys could help me. I've made another models.py with different variables and connected them to calendar.html/calendar.db but that hasn't work. I've done a lot of things and followed the same steps i got database.db to work but I can't figure it out.

Thank you

opened by EldarU123 1

Keyerror

Traceback (most recent call last): File "manage.py", line 9, in from solarpi.app import create_app File "/home/amani/Desktop/new/solarpi/solarpi/app.py", line 10, in from solarpi.settings import ProdConfig File "/home/amani/Desktop/new/solarpi/solarpi/settings.py", line 7, in class Config(object): File "/home/amani/Desktop/new/solarpi/solarpi/settings.py", line 8, in Config SECRET_KEY = os_env['SOLARPI_SECRET'] File "/home/amani/Desktop/new/.venv/lib/python2.7/UserDict.py", line 40, in getitem raise KeyError(key) KeyError: 'SOLARPI_SECRET'

i generated the key but still am getting the same error, can anyone help?

opened by Amanimasila 3
Fixed closing h1 tag

When i copied the html from your repo, vscode highlighted a problem with the html with this message Tag must be paired, missing: [ </h1> ], start tag match failed [ <h1> ] hence the fix.

opened by kellyjoe256 0

Owner

Real Python

Online Python Training: tutorials, video courses, sample projects, news, and more.

GitHub http://discoverflask.com

Full Stack Web Development with Flask.

Related tags

Overview

Discover Flask

Support

Contents

Links

Comments

test cases using () deprecated

Confusion

Sample material does not match the videos

How to make a database for each html page in my web application? flask, python, html,sql

Keyerror

Fixed closing h1 tag

Owner

Real Python

Flask Project Template A full feature Flask project template.

Full-Stack application that visualizes amusement park safety.

flask-apispec MIT flask-apispec (🥉24 · ⭐ 520) - Build and document REST APIs with Flask and apispec. MIT

flask-reactize is a boostrap to serve any React JS application via a Python back-end, using Flask as web framework.

Full text search for flask.

The Snoopy boilerplate in flask framework for development enterprise application.

Flask-Bcrypt is a Flask extension that provides bcrypt hashing utilities for your application.

Flask-Rebar combines flask, marshmallow, and swagger for robust REST services.

Flask-Bcrypt is a Flask extension that provides bcrypt hashing utilities for your application.

Brandnew-flask is a CLI tool used to generate a powerful and mordern flask-app that supports the production environment.

A Fast API style support for Flask. Gives you MyPy types with the flexibility of flask

Flask-app scaffold, generate flask restful backend

Flask pre-setup architecture. This can be used in any flask project for a faster and better project code structure.

Pf-flask-rest-com - Flask REST API Common Implementation by Problem Fighter Library

Flask-Discord-Bot-Dashboard - A simple discord Bot dashboard created in Flask Python

Open-source Flask Sample built on top of flask-dance library

Flask-redmail - Email sending for Flask

Flask Sitemapper is a small Python 3 package that generates XML sitemaps for Flask applications.

Flask-template - A simple template for make an flask api