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Using Flask to output Python data to High Charts
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| from flask import Flask, render_template | |
| app = Flask(__name__) | |
| @app.route('/') | |
| @app.route('/index') | |
| def index(chartID = 'chart_ID', chart_type = 'bar', chart_height = 350): | |
| chart = {"renderTo": chartID, "type": chart_type, "height": chart_height,} | |
| series = [{"name": 'Label1', "data": [1,2,3]}, {"name": 'Label2', "data": [4, 5, 6]}] | |
| title = {"text": 'My Title'} | |
| xAxis = {"categories": ['xAxis Data1', 'xAxis Data2', 'xAxis Data3']} | |
| yAxis = {"title": {"text": 'yAxis Label'}} | |
| return render_template('index.html', chartID=chartID, chart=chart, series=series, title=title, xAxis=xAxis, yAxis=yAxis) | |
| if __name__ == "__main__": | |
| app.run(debug = True, host='0.0.0.0', port=8080, passthrough_errors=True) |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <meta name="description" content=""> | |
| <meta name="keywords" content=""> | |
| <meta name="author" content=""> | |
| <meta charset="utf-8"> | |
| <!-- <link href="../static/css/main.css" rel="stylesheet" type="text/css" /> --> | |
| <!-- SUPPORT FOR IE6-8 OF HTML5 ELEMENTS --> | |
| <!--[if lt IE 9]> | |
| <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script> | |
| <![endif]--> | |
| <!-- <link rel="shortcut icon" href="{{ url_for('static', filename='ico/favicon.ico') }}"> --> | |
| {% block head %} | |
| <title>{% block title %} Title!{% endblock %}</title> | |
| {% endblock %} | |
| </head> | |
| <body> | |
| <div id={{ chartID|safe }} class="chart" style="height: 100px; width: 500px"></div> | |
| <script> | |
| var chart_id = {{ chartID|safe }} | |
| var series = {{ series|safe }} | |
| var title = {{ title|safe }} | |
| var xAxis = {{ xAxis|safe }} | |
| var yAxis = {{ yAxis|safe }} | |
| var chart = {{ chart|safe }} | |
| </script> | |
| <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script> | |
| <script src="http://code.highcharts.com/highcharts.js"></script> | |
| <script src="../static/js/main.js"></script> | |
| </body> | |
| </html> |
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| * { | |
| margin: 20; | |
| padding: 100; | |
| } | |
| header { | |
| background-color:rgba(33, 33, 33, 0.9); | |
| color:#ffffff; | |
| display:block; | |
| font: 14px/1.3 Arial,sans-serif; | |
| height:50px; | |
| position:relative; | |
| } | |
| header h2{ | |
| font-size: 22px; | |
| margin: 0px auto; | |
| padding: 10px 0; | |
| width: 80%; | |
| text-align: center; | |
| } | |
| header a, a:visited { | |
| text-decoration:none; | |
| color:#fcfcfc; | |
| } | |
| body { | |
| background:url("background.jpg") no-repeat scroll top center transparent; | |
| } | |
| .actions, .chart { | |
| margin: 15px auto; | |
| width: 34px; | |
| } | |
| button { | |
| background: none repeat scroll 0 0 #E3E3E3; | |
| border: 1px solid #BBBBBB; | |
| border-radius: 3px 3px 3px 3px; | |
| box-shadow: 0 0 1px 1px #F6F6F6 inset; | |
| color: #333333; | |
| font: bold 12px; | |
| margin: 0 5px; | |
| padding: 8px 0 9px; | |
| text-align: center; | |
| text-shadow: 0 1px 0 #FFFFFF; | |
| width: 150px; | |
| } | |
| button:hover { | |
| background: none repeat scroll 0 0 #D9D9D9; | |
| box-shadow: 0 0 1px 1px #EAEAEA inset; | |
| color: #222222; | |
| cursor: pointer; | |
| } | |
| button:active { | |
| background: none repeat scroll 0 0 #D0D0D0; | |
| box-shadow: 0 0 1px 1px #E3E3E3 inset; | |
| color: #000000; | |
| } |
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| $(document).ready(function() { | |
| $(chart_id).highcharts({ | |
| chart: chart, | |
| title: title, | |
| xAxis: xAxis, | |
| yAxis: yAxis, | |
| series: series | |
| }); | |
| }); |
About NO SHOWING GRAPH!!!,
there was two problems in my case:
- First , if you also already include bootstrap CDN, comment that
<script></script>block (bottom ofindex.html), and include that one which is provided in tutorial ( i leave<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">in<head>tag). - Second is height in
<div id={{ chartID|safe }}></div>style, change height to maybe 400px, this works for me.
Python3.7/Flask==1.1.1.
Chart is not getting loaded as mentioned above. Would a JS file loading from external links provided is being blocked? Is there a workaround to fix if js or css files mentioned can be handled correctly?
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How to use this for Highmaps?