[QGIS-Developer] sklearn error

[Tyler Veinot]

Hugh,
I installed it all through the OSGeo4W installer, sklearn seems to install
by default; when I run help("modules") in QGIS pyconsole I get sklearn
returned in the list. Since I didn't install this myself I can only assume
it installed with the OSGeo4W installer. That said, when i updated my
installation sklearn seems to work. From QGIS pyconsole and Pycharm I can
run
import qgis, osgeo, sklearn
from sklearn import cluster, metrics
from sklearn.cluster import DBSCAN
from sklearn.metrics import silhouette_score
print('Qapla')
and the output prints 'Qapla'
I am assuming it is working now, not sure how much of the import is
necessary, I know when using Pycharm to use the geopandas from the OSGeo
installer I have to import qgis and qgis processing before import geopandas
as gp will work; or something to that effect.
Tyler

On Fri, May 27, 2022 at 11:06 AM Hugh Kelley <hghklly at gmail.com> wrote:

> Hi Tyler, since I haven't seen anyone else respond I have a few
> questions/comments/suggestions.
>
> What OS are you using? It looks like windows based on the file paths.
> since sklearn has dependencies that require C bindings, you might have a
> much easier time doing your work in either a linux environment (WSL might
> be your easiest option), or using Anaconda.
>
> How are you installing sklearn? I don't believe conda is compatible with
> the way QGIS uses python, maybe others on the list will correct me about
> that.
>
> Possibly the most helpful thing I can suggest is not even bothering to try
> to install anything for python on windows with pip, it works for some of
> the basic libraries but most of the spatial libraries and probably the
> machine learning type stuff end up requiring wheel files that are just very
> difficult to get set up correctly.
>
> You might consider asking in a sklearn forum as this seems like more of a
> problem with sklearn than with qgis.
>
>
>
> On Thu, May 26, 2022 at 9:49 AM Tyler Veinot via QGIS-Developer <
> qgis-developer at lists.osgeo.org> wrote:
>
>> I am trying to use sklearn in QGIS python console, it is showing up as
>> installed and I can import modules from it but when I run script I get the
>> error message
>> "Traceback (most recent call last):
>>   File "C:\OSGeo4W\apps\Python39\lib\code.py", line 90, in runcode
>>     exec(code, self.locals)
>>   File "<input>", line 1, in <module>
>>   File "<string>", line 6, in <module>
>>   File "C:\OSGeo4W/apps/qgis-ltr/./python\qgis\utils.py", line 888, in
>> _import
>>     mod = _builtin_import(name, globals, locals, fromlist, level)
>>   File
>> "C:\OSGeo4W\apps\Python39\lib\site-packages\sklearn\cluster\__init__.py",
>> line 6, in <module>
>>     from ._spectral import spectral_clustering, SpectralClustering
>>   File "C:\OSGeo4W/apps/qgis-ltr/./python\qgis\utils.py", line 888, in
>> _import
>>     mod = _builtin_import(name, globals, locals, fromlist, level)
>>   File
>> "C:\OSGeo4W\apps\Python39\lib\site-packages\sklearn\cluster\_spectral.py",
>> line 15, in <module>
>>     from ..metrics.pairwise import pairwise_kernels
>>   File "C:\OSGeo4W/apps/qgis-ltr/./python\qgis\utils.py", line 888, in
>> _import
>>     mod = _builtin_import(name, globals, locals, fromlist, level)
>>   File
>> "C:\OSGeo4W\apps\Python39\lib\site-packages\sklearn\metrics\__init__.py",
>> line 37, in <module>
>>     from . import cluster
>>   File "C:\OSGeo4W/apps/qgis-ltr/./python\qgis\utils.py", line 888, in
>> _import
>>     mod = _builtin_import(name, globals, locals, fromlist, level)
>>   File
>> "C:\OSGeo4W\apps\Python39\lib\site-packages\sklearn\metrics\cluster\__init__.py",
>> line 8, in <module>
>>     from ._supervised import adjusted_mutual_info_score
>>   File "C:\OSGeo4W/apps/qgis-ltr/./python\qgis\utils.py", line 888, in
>> _import
>>     mod = _builtin_import(name, globals, locals, fromlist, level)
>>   File
>> "C:\OSGeo4W\apps\Python39\lib\site-packages\sklearn\metrics\cluster\_supervised.py",
>> line 24, in <module>
>>     from ._expected_mutual_info_fast import expected_mutual_information
>>   File "C:\OSGeo4W/apps/qgis-ltr/./python\qgis\utils.py", line 888, in
>> _import
>>     mod = _builtin_import(name, globals, locals, fromlist, level)
>> ModuleNotFoundError: No module named
>> 'sklearn.metrics.cluster._expected_mutual_info_fast'"
>> Has anyone had this issue and devised a work around?
>> _______________________________________________
>> QGIS-Developer mailing list
>> QGIS-Developer at lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
>>
>
>
> --
> Hugh Kelley
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20220527/77854197/attachment.htm>