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Python Script in Power BI

It's great that Power BI already has the capability to run R scripts for data transformation. It would be even better if we could run Python script.

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    Kenneth Singh shared this idea  ·   ·  Flag idea as inappropriate…  ·  Admin →

    170 comments

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      • Karl Duckett commented  ·   ·  Flag as inappropriate

        Keep updating the Python functionality within Python! It's super power and will only benefit Power BI's dominace!

      • Karl Duckett commented  ·   ·  Flag as inappropriate

        Keep updating the Python functionality within Python! It's super power and will only benefit Power BI's dominance!

      • Robert W commented  ·   ·  Flag as inappropriate

        I recently had the opportunity to try out the new Python script as a source feature. I was impressed to see Power BI identify every DataFrame in my script and display them as a table selector. The PythonScriptWrapper to export to csv and then import is clever.

        The one issue I have with the feature is how Power BI handles refreshing each table from the single script. Even though the tables were originally imported together, they are no longer related after that point. Each table will execute the script when a refresh is requested. This is not only very CPU and memory intensive when parallel refresh is enabled, but it takes much longer than the original import.

        Can this behavior be changed in order to run the script once to refresh all of the tables generated by that script?

      • Aron commented  ·   ·  Flag as inappropriate

        I am very lucky that this feature already is in preview stage.
        Been testing a little bit, and i could use some of my most used python scripts with only little modification.
        Most of them were running fine.

        Good job and a big "Thank you"!

      • B. Buil commented  ·   ·  Flag as inappropriate

        After executing the Power BI update of 16-09-2018, the whole system was crashing time after time.
        I have removed the latest updated version of 16-9-2018 and I have installed the old version of 1-9-2018 back again and the system was stable as before…...

      • David commented  ·   ·  Flag as inappropriate

        It would be great if we could access all tables in our data model to create custom measures in Python. At this point it seems that you can ETL one table at a time in the import phase, and create visuals in the visual element. If we can write python functions to act as DAX functions I think this will be very useful.

      • Arne Petter Dragest commented  ·   ·  Flag as inappropriate

        @Peter, The documentation still seems a bit sparse. You'll need pandas and matplotlib to make Py visualizations. If you're running Anaconda you should be fine. There seems to be an issue with locale settings if you're based in a country where comma as decimal separator is the norm. So if you install Anaconda and check your locale settings, you should be able to make the same chart that is shown in the Power BI desktop august feature summary.

        Python visuals are currently supported only in Power BI Desktop. I tried putblishing to Power BI on the web, but I only got that exact error message with a link directing me to a page about R visualizations. So as I said, the documentation seems a bit sparse.

        Check out these resources:

        Anaconda:

        https://www.anaconda.com/download/

        Some issues to be aware of:

        https://stackoverflow.com/questions/51859000/regional-settings-conflicting-with-matplotlib-for-python-visualizations-in-power

        Link in the error message from Power BI services:

        https://docs.microsoft.com/en-us/power-bi/desktop-r-visuals

      • Peter commented  ·   ·  Flag as inappropriate

        Is there any documentation on this? Like a list of packages supported? Do the visuals work in the service?

      • Christopher commented  ·   ·  Flag as inappropriate

        The preview worked great for me! One thing that would make it easier to use would be to enable the drop-down ability like in a python editor i.e. when I type "pandas." I get a drop-down list of the pandas functions. Thank you so much for creating this capability!

      • LCorales commented  ·   ·  Flag as inappropriate

        enhorabuena.... mucho esperar.... ahora la documentación para sacar el máximo provecho.... felicitaciones al equipo.. un humilde usuario

      • Arne Petter Dragest commented  ·   ·  Flag as inappropriate

        @Anonymous, I suspected that since the July feature summary was released July 23 and there's been a lot of talk about a 'Py' indicator being available as a visualization option under the Microsoft Business Applications Summit 2018 presentations. But if you use the download link from the July 2018 feature Summary, Python support will be available: https://powerbi.microsoft.com/en-us/blog/power-bi-desktop-july-2018-feature-summary/ Or at least it was when I ran an update this morning.

      • Anonymous commented  ·   ·  Flag as inappropriate

        @Arne, it looks like you caught the August update early through the Windows store -- this feature was not included in the July update. :)

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