https://community.esri.com/t5/python-questions/is-it-possible-to-install-scikit-learn-on-arcmap/m-p/1251068#M66643 <P>Unfortunately, it only finds scikit-learn==0.20.4 which apparently does not work with numpy==0.9.3 (upon import, it fails with ValueError: numpy.dtype has the wrong size, try recompiling. Expected 52, got 56) and pip cannot downgrade numpy...</P> Tue, 24 Jan 2023 22:54:44 GMT Manu 2023-01-24T22:54:44Z https://community.esri.com/t5/python-questions/is-it-possible-to-install-scikit-learn-on-arcmap/m-p/1250954#M66630 <P>I am working on a Windows computer of my company and I want to use Scikit-Learn in an ArcMap Python Toolbox. Is this possible? If so, how can I install it?<BR /><BR />For smaller packages that are exclusively written in Python, I managed to just make a local copy of the Package and to add it using</P><LI-CODE lang="python">sys.path.append()</LI-CODE><P>However, this did not work for Scikit-Learn.<BR />If possible, I would not only use Scikit-Learn but also distribute it along with the Toolbox.</P> Tue, 24 Jan 2023 19:18:27 GMT https://community.esri.com/t5/python-questions/is-it-possible-to-install-scikit-learn-on-arcmap/m-p/1250954#M66630 Manu 2023-01-24T19:18:27Z https://community.esri.com/t5/python-questions/is-it-possible-to-install-scikit-learn-on-arcmap/m-p/1251017#M66639 <P>arcmap == python 2.7, scikit-learn may have dropped support for its newest versions. so give the conda package manager a try.&nbsp; If it looks good, drop the --dry-run portion (which just says what it is going to do without actually doing it)</P><LI-CODE lang="python">&gt;&gt;&gt; conda install scikit-learn --dry-run</LI-CODE> Tue, 24 Jan 2023 20:41:45 GMT https://community.esri.com/t5/python-questions/is-it-possible-to-install-scikit-learn-on-arcmap/m-p/1251017#M66639 DanPatterson 2023-01-24T20:41:45Z https://community.esri.com/t5/python-questions/is-it-possible-to-install-scikit-learn-on-arcmap/m-p/1251068#M66643 <P>Unfortunately, it only finds scikit-learn==0.20.4 which apparently does not work with numpy==0.9.3 (upon import, it fails with ValueError: numpy.dtype has the wrong size, try recompiling. Expected 52, got 56) and pip cannot downgrade numpy...</P> Tue, 24 Jan 2023 22:54:44 GMT https://community.esri.com/t5/python-questions/is-it-possible-to-install-scikit-learn-on-arcmap/m-p/1251068#M66643 Manu 2023-01-24T22:54:44Z https://community.esri.com/t5/python-questions/is-it-possible-to-install-scikit-learn-on-arcmap/m-p/1251076#M66644 <P>You will need ArcGIS Pro to work with a suitable conda environment.&nbsp; ArcMap isn't being upgraded any further so you might want to switch to it for those functions that can't or can no longer be done in ArcMap and its environments.</P><P>Also, many science, ml and ai packages no longer support python &lt;= 3.8 and plans are in the works to abandon 3.9 in the near-ish future so moving forward may be your best option.</P> Tue, 24 Jan 2023 23:13:24 GMT https://community.esri.com/t5/python-questions/is-it-possible-to-install-scikit-learn-on-arcmap/m-p/1251076#M66644 DanPatterson 2023-01-24T23:13:24Z