<p dir="auto">I am exploring Apache SuperSet. I want to connect to mysql database on server i.e., EC2 instance. I have installed all the required libraries based on <a href="https://superset.incubator.apache.org/installation.html" rel="nofollow">https://superset.incubator.apache.org/installation.html</a> and launched the superset as well.<br>
I did go through <a href="https://docs.sqlalchemy.org/en/12/core/engines.html#database-urls" rel="nofollow">https://docs.sqlalchemy.org/en/12/core/engines.html#database-urls</a>.<br>
entered mysql://{username}:{password}@{ip address of ec2 instance}/{database name} in the URL<br>
Although i have the library, yet when i try to connect the mysql it says "No module named 'MySQLdb'". (Yes i have installed mysql-client)</p>
<p dir="auto">Please help me with how to proceed?</p>
<p dir="auto">In latest master, open METRICS popover, see missing saved metrics from the dropdown select.</p>
<p dir="auto">To reproduce:</p>
<ul dir="auto">
<li>Open any charts that use sample data(e.g. FCC2018 Survey)</li>
<li>Go to Edit dataset. in metric tab, create 3 new metrics and Save</li>
<li>Go back to the control panel, click the pre-filled saved metric in METRICS</li>
<li>Save tab, click dropdown, see list missing the original one,</li>
</ul>
<p dir="auto"><strong>Actual</strong></p>
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  <video src="https://user-images.githubusercontent.com/67837651/106222980-7112a200-6195-11eb-8652-8c8afb796876.mov" data-canonical-src="https://user-images.githubusercontent.com/67837651/106222980-7112a200-6195-11eb-8652-8c8afb796876.mov" controls="controls" muted="muted" class="d-block rounded-bottom-2 border-top width-fit" style="max-height:640px; min-height: 200px">

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<p dir="auto"><strong>Expected</strong><br>
<a target="_blank" rel="noopener noreferrer nofollow" href="https://user-images.githubusercontent.com/67837651/106222908-4aed0200-6195-11eb-807d-2e64ee0cf909.png"><img width="737" alt="Screen Shot 2021-01-28 at 6 08 30 PM" src="https://user-images.githubusercontent.com/67837651/106222908-4aed0200-6195-11eb-807d-2e64ee0cf909.png" style="max-width: 100%;"></a></p>