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2026-01-27 15:15:54 +03:00
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commit 6cdcb359a0
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g11-m3-4/README.md
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@@ -4,13 +4,13 @@ A complete full-stack web application with user authentication built with Flask
## 📁 Project Structure
flask_app/
├── app.py # Main Flask application
├── database.py # Database setup and functions
├── users.py # User authentication functions
├── users.db # SQLite database
├── requirements.txt # Python dependencies
├── venv/ # Virtual environment
└── templates/ # HTML templates
├── app.py
├── database.py
├── users.py
├── users.db
├── requirements.txt
├── venv/
└── templates/
├── base.html
├── home.html
├── login.html
@@ -20,15 +20,37 @@ text
## 🚀 Quick Start
### 1. Create Project Structure
### 1. Create Project Scaffold (One Command!)
```bash
cd Desktop
mkdir flask_app
# Create all empty files and folders with one command:
mkdir -p flask_app/templates && cd flask_app && touch app.py database.py users.py users.db requirements.txt && mkdir -p venv && touch templates/base.html templates/home.html templates/login.html templates/register.html && cd .. && echo "✅ All empty files created in 'flask_app/':" && find flask_app/ -type f | sort
2. Setup Virtual Environment
bash
cd flask_app
# Create all project files at once
cat > app.py << 'PYEOF'
# Create virtual environment
python -m venv venv
# Activate virtual environment (Windows PowerShell)
venv\Scripts\Activate.ps1
# If you get an error:
Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
venv\Scripts\Activate.ps1
# Activate virtual environment (Mac/Linux)
# source venv/bin/activate
3. Install Dependencies
bash
pip install flask werkzeug flask-wtf
pip freeze > requirements.txt
4. Fill Files with Code
Now fill the empty files with the code below:
app.py - Main Flask application:
python
from flask import Flask, render_template, request, redirect, url_for, session, flash
import database
import users
@@ -85,9 +107,9 @@ def logout():
if __name__ == '__main__':
app.run(debug=True)
PYEOF
database.py - Database operations:
cat > database.py << 'DBEOF'
python
import sqlite3
def init_db():
@@ -111,9 +133,9 @@ def get_db_connection():
conn = sqlite3.connect('users.db')
conn.row_factory = sqlite3.Row
return conn
DBEOF
users.py - User authentication:
cat > users.py << 'UEOF'
python
from werkzeug.security import generate_password_hash, check_password_hash
import database
@@ -139,12 +161,10 @@ def login_user(username, password):
return True, user
else:
return False, 'Invalid username or password!'
UEOF
5. Fill HTML Templates
templates/base.html:
# Create templates folder
mkdir templates
cat > templates/base.html << 'HTML1EOF'
html
<!DOCTYPE html>
<html lang="en">
<head>
@@ -184,9 +204,9 @@ cat > templates/base.html << 'HTML1EOF'
{% block content %}{% endblock %}
</body>
</html>
HTML1EOF
templates/home.html:
cat > templates/home.html << 'HTML2EOF'
html
{% extends "base.html" %}
{% block title %}Home{% endblock %}
@@ -201,9 +221,9 @@ cat > templates/home.html << 'HTML2EOF'
<p>Please <a href="{{ url_for('login') }}">login</a> or <a href="{{ url_for('register') }}">register</a>.</p>
{% endif %}
{% endblock %}
HTML2EOF
templates/register.html:
cat > templates/register.html << 'HTML3EOF'
html
{% extends "base.html" %}
{% block title %}Register{% endblock %}
@@ -218,9 +238,9 @@ cat > templates/register.html << 'HTML3EOF'
</form>
<p>Already have an account? <a href="{{ url_for('login') }}">Login here</a></p>
{% endblock %}
HTML3EOF
templates/login.html:
cat > templates/login.html << 'HTML4EOF'
html
{% extends "base.html" %}
{% block title %}Login{% endblock %}
@@ -234,21 +254,7 @@ cat > templates/login.html << 'HTML4EOF'
</form>
<p>Don't have an account? <a href="{{ url_for('register') }}">Register here</a></p>
{% endblock %}
HTML4EOF
2. Create Virtual Environment
bash
python -m venv venv
venv\Scripts\Activate.ps1
If you get an error:
bash
Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
venv\Scripts\Activate.ps1
3. Install Dependencies
bash
pip install flask werkzeug flask-wtf
pip freeze > requirements.txt
4. Run the Application
6. Run the Application
bash
python app.py
Visit: http://127.0.0.1:5000