Flask css not updating [closed]

I am using Flask (the python Package) on my mac, when I first wrote my css it displayed ok. However when I updated it and tried to check it, I only see the first css styles. I have tried restarting the terminal, as well as reinstalling Flask. Any suggestions? Thanks. Heres the HTML:

    <!DOCTYPE html>
<html>
<head>
    <title>Title</title>   
    <link rel="stylesheet" href="{{ url_for('static', filename='css/style.css') }}">
</head>
<body>

    <header>
        <div class="header"></div>
        <div class="logo">
            <center><img src="/static/img/p_logo.png" alt="pic"/></center>
        </div>
    </header> 

    <div class="container">
        {% block content %}
        {% endblock %}
    </div>

</body>

And heres the CSS:

    * {
font-family: "Times New Roman", Times, serif;
}

header {
background-color: #000000;
width: 100%;
height: 7px;

}

Problem is, as already said, related to browser cache.

To solve that, you could add some dynamic variable to your static (css, js) links. I prefer last modified timestamp for each file.

/static/css/style.css?q=1280549780

Here is a snippet for that:

http://flask.pocoo.org/snippets/40/

@app.context_processor
def override_url_for():
    return dict(url_for=dated_url_for)

def dated_url_for(endpoint, **values):
    if endpoint == 'static':
        filename = values.get('filename', None)
        if filename:
            file_path = os.path.join(app.root_path,
                                 endpoint, filename)
            values['q'] = int(os.stat(file_path).st_mtime)
    return url_for(endpoint, **values)

Flask css not updating [closed]

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