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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
I'm not familiar with KD, but, if you can code Qt widget with it, SIP will allow you to execute it in PyQt. An example project here by Eyllancsc https://github.com/eyllanesc/Qt5toPyQt5
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