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Add materials for the Primer on Jinja tutorial
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‎primer-on-jinja-templating-update/README.md‎

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# Primer on Jinja Templating
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This repository holds the code for the Real Python [Primer on Jinja Templating](https://realpython.com/primer-on-jinja-templating/) tutorial.
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## Dependencies
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You should first create a virtual environment:
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```console
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$ python -m venv venv
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$ source venv/bin/activate
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```
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You can then install `flask` with `pip`:
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```console
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(venv) $ python -m pip install flask
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```
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When you install Flask you'll install Jinja2 as a dependency.
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## Run the Web App
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You can start your Flask development server by running `app.py` as a script:
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```console
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(venv) $ python app.py
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```
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To see your home page, visit `http://127.0.0.1:5000`.
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## Author
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- **Philipp Acsany**, E-mail: [[email protected]]([email protected])
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## License
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Distributed under the MIT license. See [`LICENSE`](../LICENSE) for more information.

‎primer-on-jinja-templating-update/app.py‎

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from flask import Flask, render_template
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app = Flask(__name__)
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@app.route("/")
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def home():
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return render_template("base.html", title="home")
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max_score = 100
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test_name = "Python Challenge"
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students = [
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{"name": "Sandrine", "score": 100},
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{"name": "Gergeley", "score": 87},
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{"name": "Frieda", "score": 92},
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{"name": "Fritz", "score": 40},
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{"name": "Sirius", "score": 75},
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]
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@app.route("/results")
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def results():
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context = {
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"title": "results",
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"max_score": max_score,
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"test_name": test_name,
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"students": students,
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}
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return render_template("results.html", **context)
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if __name__ == "__main__":
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app.run(debug=True)

‎primer-on-jinja-templating-update/requirements.txt‎

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click==8.1.3
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Flask==2.1.2
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itsdangerous==2.1.2
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Jinja2==3.1.2
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MarkupSafe==2.1.1
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Werkzeug==2.1.2

‎primer-on-jinja-templating-update/templates/_navigation.html‎

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<nav>
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{% for menu_item in ["home", "results"] %}
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{{ macros.nav_link(menu_item) }}
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{% endfor %}
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</nav>

‎primer-on-jinja-templating-update/templates/base.html‎

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{% import "macros.html" as macros %}
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>{% block title %}{{ title }}{% endblock title %}</title>
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</head>
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<body>
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<header>
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{% include "_navigation.html" %}
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</header>
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{% block content %}
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<h1>Welcome to {{ title }}!</h1>
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{% endblock content %}
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<footer>
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{{ macros.light_or_dark_mode("body") }}
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</footer>
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</body>
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</html>

‎primer-on-jinja-templating-update/templates/macros.html‎

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{% macro light_or_dark_mode(element) %}
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{% if request.args.get("mode") == "dark" %}
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<a href="{{ request.path }}">Switch to Light Mode</a>
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<style>
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{{ element }} {
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background-color: #212F3C;
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color: #FFFFF0;
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}
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{{ element }} a {
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color: #00BFFF !important;
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}
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</style>
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{% else %}
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<a href="{{ request.path }}?mode=dark">Switch to Dark Mode</a>
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{% endif %}
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{% endmacro %}
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{% macro add_badge(student, students) %}
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{% set high_score = students|map(attribute="score")|max %}
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{% if student.score == high_score %}
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⭐️
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{% elif student.score > 80 %}
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🙂
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{% else %}
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🙁
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{% endif %}
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{% endmacro %}
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{% macro nav_link(menu_item) %}
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{% set mode = "?mode=dark" if request.args.get("mode") == "dark" else "" %}
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<a href="{{ url_for(menu_item) }}{{ mode }}">{{ menu_item|upper }}</a>
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{% if request.endpoint == menu_item %}
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←
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{% endif %}
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{% endmacro %}

‎primer-on-jinja-templating-update/templates/results.html‎

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{% extends "base.html" %}
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{% block title %}{{ title }}{% endblock title %}
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{% block content %}
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<h1>{{ test_name }} {{ title }}</h1>
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<ul>
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{% for student in students|sort(attribute="name") %}
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<li>
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{{ macros.add_badge(student, students) }}
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<em>{{ student.name }}:</em> {{ student.score }}/{{ max_score }}
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</li>
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{% endfor %}
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</ul>
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{% endblock content %}

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