跟着我们一起学 Python 30天课程-第25天-Web Development Extras

{% extends "layout.html" %}
{% block title %}Index{% endblock %}
{% block head %}
  {{ super() }}
  <style type="text/css">
    .important { color: #336699; }
  </style>
{% endblock %}
{% block content %}
  <h1>About</h1>
  <p class="important">
    Hi. I am Arindam. I love building User Interfaces. I am currently learning
    Python and created this simple blog using the Flask web development
    framework.
{% endblock %}

{% extends "layout.html" %}
{% block title %}Index{% endblock %}
{% block head %}
  {{ super() }}
  <style type="text/css">
    .important { color: #336699; }
  </style>
{% endblock %}
{% block content %}
  <h1>About</h1>
  <p class="important">
    Hi. I am Arindam. I love building User Interfaces. I am currently learning
    Python and created this simple blog using the Flask web development
    framework.
{% endblock %}

{% extends 'layout.html' %} 
{% block title %}Page Not Found{% endblock %}
{% block content %}
  <h1>Page Not Found</h1>
  <p class="important">
    Sorry, this page does not exist!
{% endblock %}

@app.errorhandler(404)
def page_not_found(error):
    return render_template('not_found.html'), 404

import os

def get_all_post_names():
    try:
        post_files = os.listdir('templates/posts')
        post_names = list(map(lambda x: x.split('.')[0], post_files))
        return post_names
    except:
        print('An error occurred while fetching posts')
        return []

{% extends "layout.html" %} 
{% block title %}Index{% endblock %} 
{% block head%}
{{ super() }}
 {% endblock %} 
{% block content %}

<h1 class="title">
  Welcome to the Python Blog.
</h1>
<h2>Recent Posts</h2>
<ul class="post-list">
  {% for post in post_names %}
  <li><a href="posts/{{post}}.html">{{post}}</a></li>
  {% endfor %}
</ul>

{% endblock %}

@app.route('/posts/<string:post_name>')
def show_post(post_name):
    return render_template(f'posts/{post_name}.html')

$ pip freeze > requirements.txt