[scikit-learn] scikit-learn 0.24 installation fails with ModuleNotFoundError: No module named 'scipy'

[Guillaume Lemaître]

We might experience an issue with PyPI not selecting the manylinux2010
wheel: https://github.com/scikit-learn/scikit-learn/issues/19233
We have to check but we will probably shortly upload manylinux1 wheels that
should resolve the issue.

I am curious if fetching the wheel by hand and installing via `pip` would
be a workaround (not practical for automated usage thought).

On Thu, 21 Jan 2021 at 00:34, The Helmbolds via scikit-learn <
scikit-learn at python.org> wrote:

> Use the Anaconda Python installation.
>
> "You won't find the right answers if you don't ask the right questions!"
> (Robert Helmbold, 2013)
>
>
> On Wednesday, January 20, 2021, 04:16:15 PM MST, Guillaume Lemaître <
> g.lemaitre58 at gmail.com> wrote:
>
>
> Basically it get the tar with the source and recompile instead of using
> the wheel. Could you force an install from PyPI without using the cached
> file.
>
> We pushed wheels yesterday for 0.24.1 as well so it should not get the
> 0.24.0 version.
>
> For 0.23.2, you can see that it used the wheel (.whl).
>
> Sent from my phone - sorry to be brief and potential misspell.
> *From:* bertrand25mtl at gmail.com
> *Sent:* 20 January 2021 23:21
> *To:* scikit-learn at python.org
> *Reply to:* scikit-learn at python.org
> *Subject:* [scikit-learn] scikit-learn 0.24 installation fails with
> ModuleNotFoundError: No module named 'scipy'
>
> To whom it may concern,
>
> I am trying to install scikit-learn in a PySpark job using the
> install_pypi_package PySpark API but the install fails with :
>
> sc.install_pypi_package("scikit-learn")
>
> Collecting scikit-learn
>   Using cached https://files.pythonhosted.org/packages/db/e2/9c0bde5f81394b627f623557690536b12017b84988a4a1f98ec826edab9e/scikit-learn-0.24.0.tar.gz
> Requirement already satisfied: numpy>=1.13.3 in /usr/local/lib64/python3.7/site-packages (from scikit-learn)
> Collecting scipy>=0.19.1 (from scikit-learn)
>   Using cached https://files.pythonhosted.org/packages/58/9d/8296d8211318d690119eba6d293b7a149c1c51c945342dd4c3816f79e1ba/scipy-1.6.0-cp37-cp37m-manylinux1_x86_64.whl
> Requirement already satisfied: joblib>=0.11 in /usr/local/lib64/python3.7/site-packages (from scikit-learn)
> Collecting threadpoolctl>=2.0.0 (from scikit-learn)
>   Using cached https://files.pythonhosted.org/packages/f7/12/ec3f2e203afa394a149911729357aa48affc59c20e2c1c8297a60f33f133/threadpoolctl-2.1.0-py3-none-any.whl
> Building wheels for  collected packages: scikit-learn
>   Running setup.py bdist_wheelfor  scikit-learn: started
>   Running setup.py bdist_wheelfor scikit-learn: finished with status 'error'
>   Complete output from command /tmp/1611000009300-0/bin/python -u -c "import setuptools, tokenize;__file__='/mnt/tmp/pip-build-phc6p6gl/scikit-learn/setup.py ';f=getattr(tokenize, 'open', open)(__file__);code=f.read ().replace('\r\n', '\n');f.close ();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /tmp/tmpry3gf9r0pip-wheel- --python-tag cp37:
>   Partial import of sklearn during the build process.
>   Traceback (most recent call last):
>     File "/mnt/tmp/pip-build-phc6p6gl/scikit-learn/setup.py ", line 201, in check_package_status
>       module = importlib.import_module(package)
>     File "/tmp/1611000009300-0/lib64/python3.7/importlib/__init__.py", line 127, in import_module
>       return _bootstrap._gcd_import(name[level:], package, level)
>     File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
>     File "<frozen importlib._bootstrap>", line 983, in _find_and_load
>     File "<frozen importlib._bootstrap>", line 965, in _find_and_load_unlocked
>   ModuleNotFoundError: No module named 'scipy'
>   Traceback (most recent call last):
>     File "<string>", line 1, in <module>
>     File "/mnt/tmp/pip-build-phc6p6gl/scikit-learn/setup.py ", line 306, in <module>
>       setup_package()
>     File "/mnt/tmp/pip-build-phc6p6gl/scikit-learn/setup.py ", line 294, in setup_package
>       check_package_status('scipy', min_deps.SCIPY_MIN_VERSION)
>     File "/mnt/tmp/pip-build-phc6p6gl/scikit-learn/setup.py ", line 227, in check_package_status
>       .format(package, req_str, instructions))
>   ImportError: scipy is not installed.
>   scikit-learn requires scipy >= 0.19.1.
>
> I do not encounter this error with scikit-learn 0.23.2 :
>
> sc.install_pypi_package("scikit-learn==0.23.2")
>
> Collecting scikit-learn==0.23.2
>   Using cached https://files.pythonhosted.org/packages/f4/cb/64623369f348e9bfb29ff898a57ac7c91ed4921f228e9726546614d63ccb/scikit_learn-0.23.2-cp37-cp37m-manylinux1_x86_64.whl
> Requirement already satisfied: scipy>=0.19.1 in /mnt/tmp/1611000009300-0/lib/python3.7/site-packages (from scikit-learn==0.23.2)
> Requirement already satisfied: numpy>=1.13.3 in /usr/local/lib64/python3.7/site-packages (from scikit-learn==0.23.2)
> Requirement already satisfied: joblib>=0.11 in /usr/local/lib64/python3.7/site-packages (from scikit-learn==0.23.2)
> Requirement already satisfied: threadpoolctl>=2.0.0 in /mnt/tmp/1611000009300-0/lib/python3.7/site-packages (from scikit-learn==0.23.2)
> Installing collected packages: scikit-learn
> Successfully installed scikit-learn-0.23.2
>
>
> Could you please help me understand why the scikit-learn 0.24 installation
> fails ?
>
> Thank you for your help,
>
> Bertrand
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-- 
Guillaume Lemaitre
Scikit-learn @ Inria Foundation
https://glemaitre.github.io/
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