Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
143 views
in Technique[技术] by (71.8m points)

python - Pandas Dataframe display on a webpage

I am using Flask but this probably applies to a lot of similar frameworks.

I construct a pandas Dataframe, e.g.

@app.route('/analysis/<filename>')
def analysis(filename):
    x = pd.DataFrame(np.random.randn(20, 5))
    return render_template("analysis.html", name=filename, data=x)

The template analysis.html looks like

{% extends "base.html" %}
{% block content %}
<h1>{{name}}</h1>
{{data}}
{% endblock %}

This works but the output looks horrible. It doesn't use linebreaks etc. I have played with data.to_html() and data.to_string() What's the easiest way to display a frame?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

The following should work:

@app.route('/analysis/<filename>')
def analysis(filename):
    x = pd.DataFrame(np.random.randn(20, 5))
    return render_template("analysis.html", name=filename, data=x.to_html())
                                                                # ^^^^^^^^^

Check the documentation for additional options like CSS styling.

Additionally, you need to adjust your template like so:

{% extends "base.html" %}
{% block content %}
<h1>{{name}}</h1>
{{data | safe}}
{% endblock %}

in order to tell Jinja you're passing in markup. Thanks to @SeanVieira for the tip.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...