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illume opened this issue Jan 29, 2017 · 9 comments
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pip install scikit-learn fails #8242

illume opened this issue Jan 29, 2017 · 9 comments

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@illume
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illume commented Jan 29, 2017

Description

pip install scikit-learn fails

Steps/Code to Reproduce

python3.6 -m venv anenv
. ./anenv/bin/activate
pip install scikit-learn

Expected Results

scikit-learn installs

Actual Results

Collecting scikit-learn
  Using cached scikit-learn-0.18.1.tar.gz
Installing collected packages: scikit-learn
  Running setup.py install for scikit-learn ... error
    Complete output from command /private/tmp/anenv/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/private/var/folders/__/l7lzq6ms5g13qpdg59dz1kqc0000gp/T/pip-build-oijfeier/scikit-learn/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /var/folders/__/l7lzq6ms5g13qpdg59dz1kqc0000gp/T/pip-n_v01qn2-record/install-record.txt --single-version-externally-managed --compile --install-headers /private/tmp/anenv/include/site/python3.6/scikit-learn:
    Partial import of sklearn during the build process.
    Traceback (most recent call last):
      File "/private/var/folders/__/l7lzq6ms5g13qpdg59dz1kqc0000gp/T/pip-build-oijfeier/scikit-learn/setup.py", line 169, in get_numpy_status
        import numpy
    ModuleNotFoundError: No module named 'numpy'
    Traceback (most recent call last):
      File "/private/var/folders/__/l7lzq6ms5g13qpdg59dz1kqc0000gp/T/pip-build-oijfeier/scikit-learn/setup.py", line 149, in get_scipy_status
        import scipy
    ModuleNotFoundError: No module named 'scipy'
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/__/l7lzq6ms5g13qpdg59dz1kqc0000gp/T/pip-build-oijfeier/scikit-learn/setup.py", line 270, in <module>
        setup_package()
      File "/private/var/folders/__/l7lzq6ms5g13qpdg59dz1kqc0000gp/T/pip-build-oijfeier/scikit-learn/setup.py", line 250, in setup_package
        .format(numpy_req_str, instructions))
    ImportError: Numerical Python (NumPy) is not installed.
    scikit-learn requires NumPy >= 1.6.1.
    Installation instructions are available on the scikit-learn website: http://scikit-learn.org/stable/install.html
    
    
    ----------------------------------------
Command "/private/tmp/anenv/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/private/var/folders/__/l7lzq6ms5g13qpdg59dz1kqc0000gp/T/pip-build-oijfeier/scikit-learn/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /var/folders/__/l7lzq6ms5g13qpdg59dz1kqc0000gp/T/pip-n_v01qn2-record/install-record.txt --single-version-externally-managed --compile --install-headers /private/tmp/anenv/include/site/python3.6/scikit-learn" failed with error code 1 in /private/var/folders/__/l7lzq6ms5g13qpdg59dz1kqc0000gp/T/pip-build-oijfeier/scikit-learn/

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@GaelVaroquaux
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GaelVaroquaux commented Jan 29, 2017 via email

@illume
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illume commented Jan 29, 2017 •
edited
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Shouldn't numpy, and scipy be listed in the requirements since they are required?

@GaelVaroquaux
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See #7867 and discussion within.

@jamesBrosnahan
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This still happens on WIndows 10 if numpy and scipy are installed.

@glemaitre
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@jamesBrosnahan commenting on a closed PR will not attract contributors and therefore it will not help you to solve your problem.
I would recommend you to open a new issue giving as much info as you can (system, python version, packages manager, and packages).

PS: I am also unsure that you will get the message error below with numpy installed, even in Windows 10.

ImportError: Numerical Python (NumPy) is not installed.
    scikit-learn requires NumPy >= 1.6.1.

ivyleavedtoadflax pushed a commit to alphagov/classifyintentspipe that referenced this issue Jul 26, 2017
Update travis build
8221155 
Some weirdness around installing scikit-learn.
See:

* scikit-learn/scikit-learn#8242
* scikit-learn/scikit-learn#7867

Solution is to force numpy and scipy installation before
requirements.txt is installed.
ivyleavedtoadflax pushed a commit to alphagov/classifyintentspipe that referenced this issue Jul 26, 2017
Update travis build
f88f4e6 
Some weirdness around installing scikit-learn.
See:

* scikit-learn/scikit-learn#8242
* scikit-learn/scikit-learn#7867

Solution is to force numpy and scipy installation before
requirements.txt is installed.
ivyleavedtoadflax pushed a commit to alphagov/classifyintentspipe that referenced this issue Aug 12, 2017
Rewrite pipeline using sklearn
2287639 
* Add reformat.R to convert smartsurvey format.
* Add feature generators.
* Extract data from db not flat files.
* Update README.
* Add db_to_flat_file.py to create merged db dump.
* Add urllookup as module.
* Add urllookup tests on travis.
* Add PII removal using scrubadub.
* Dump to pickle objects.

Note: DataFrameSelector outputs a numpy array, but it is easier to calculate
date features using pandas prior to conversion to a numpy array. For
this reason, create an argument as to whether the DataFrameSelector is
dealing with date features or not, and then apply the date transforms if
so, and output a numpy array.

Some weirdness around installing scikit-learn.
See:

* scikit-learn/scikit-learn#8242
* scikit-learn/scikit-learn#7867

Solution is to force numpy and scipy installation before
requirements.txt is installed.
ivyleavedtoadflax pushed a commit to alphagov/classifyintentspipe that referenced this issue Sep 17, 2017
Rewrite pipeline using sklearn
ce404c0 
* Add reformat.R to convert smartsurvey format.
* Add feature generators.
* Extract data from db not flat files.
* Update README.
* Add db_to_flat_file.py to create merged db dump.
* Add urllookup as module.
* Add urllookup tests on travis.
* Add PII removal using scrubadub.
* Dump to pickle objects.

Note: DataFrameSelector outputs a numpy array, but it is easier to calculate
date features using pandas prior to conversion to a numpy array. For
this reason, create an argument as to whether the DataFrameSelector is
dealing with date features or not, and then apply the date transforms if
so, and output a numpy array.

Some weirdness around installing scikit-learn.
See:

* scikit-learn/scikit-learn#8242
* scikit-learn/scikit-learn#7867

Solution is to force numpy and scipy installation before
requirements.txt is installed.
@jubafourali
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Try without specifying version of scikit-learn as :
pip install scikit-learn

@jamesBrosnahan
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@jamesBrosnahan commenting on a closed PR will not attract contributors and therefore it will not help you to solve your problem.
I would recommend you to open a new issue giving as much info as you can (system, python version, packages manager, and packages).

PS: I am also unsure that you will get the message error below with numpy installed, even in Windows 10.

ImportError: Numerical Python (NumPy) is not installed.
    scikit-learn requires NumPy >= 1.6.1.

What should a person do if the original computer an issue occurred on is mia?

@jnothman
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jnothman commented Apr 15, 2019 via email

@sabman
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sabman commented May 1, 2019 •
edited
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Install numpy making sure it's compatible with the required scikit-learn. Then try reinstalling scikit-learn specifying the version you want - for example with 0.18.1

VERSION=0.18.1
pip install --force-reinstall --no-cache-dir scikit-learn==$VERSION

@john-sandall john-sandall mentioned this issue Jul 4, 2020
Closed
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7 participants
@sabman @illume @jnothman @GaelVaroquaux @jamesBrosnahan @glemaitre @jubafourali