Fail to import scikit-learn due build error on Windows - scikit-learn

After verifying all requirements exists I installed scikit-learn 1.0.2 using anaconda (python 3.9.5).
Installation pass successfully, and I can import sklearn via anaconda prompt without any errors.
But when I trying to import sklearn from Spyder IDE I get the following error:
> -------------------------------------------------------------------------------------
> ImportError: No module named 'sklearn.__check_build._check_build'
> Contents of C:/Users/nyname/miniconda3/Lib/site-packages\sklearn\__check_build: setup.py
> _check_build.cp39-win_amd64.pyd__init__.py
> __pycache__
> It seems that scikit-learn has not been built correctly. If you have
> installed scikit-learn from source, please do not forget to build the
> package before using it: run `python setup.py install` or `make` in
> the source directory. If you have used an installer, please check that
> it is suited for your Python version, your operating system and your
> platform
I tried to uninstall and install the packages on the following order - Numpy, Scipy, , Scikit-learn. Also tried upgraded Spyder version from v3 to 5.2.1, or to downgrade Scikit-learn to 0.23.1 but with no help.
When I try to run:`
my\sklearn\directory\\python setup.py install
I get the following errors:
> non-existing path in '__check_build': '_check_build.pyx' Appending
> sklearn.__check_build configuration to sklearn Ignoring attempt to set
> 'name' (from 'sklearn' to 'sklearn.__check_build')
.....
.....
> FileNotFoundError: [Errno 2] No such file or directory:'sklearn/utils/_seq_dataset.pyx.tp'
I will really appreciate any suggestion, I literally upgraded all my environment and followed every suggestion I found online.

Related

Problems importing the oct2py python package

I have installed the oct2py package using the pip command pip install oct2py, set the environement path of python, pip and octave as in the following picture:
However, whenever I try to import it in my python script, I get the following error:
I checked whether the package is installed, it says: Requirement satisfied.
Any ideas of what I could possibly be doing wrong?

I have installed cvlib in python but still can't import it

I installed miniconda and just created a conda environment:
conda create -n my_env python=3.5 anaconda
I am trying to:
import cvlib
But I am getting the error:
ImportError: No module named cvlib
So I have tried to install using:
pip3 install cvlib
This seemed to work successfully, but then when I try to import cvlib I am still getting the ImportError: No module named cvlib error (I have retarted my terminal after the installation).
Is this a problem with my PYTHONPATH not containing the path to the directory that now contains cvlib? If so, how do I find where cvlib is saved so that I can add the path?
Check if the library is in your python directory. Otherwise, make a repl.it account, and install cvlib, and check the functions or the lib name. Maybe try searching a more advanced installation of cvlib.
it might have occurred due to the version of python you installed or due to the directory, you installed.
try uninstalling the current version of python and try installing an older version of python and install it in the directory as shown below:
C:\Users\Rajish\AppData\Local\Programs\Python\Python39
also, select add the path to environment variables while installing
and after that install cvlib and all other required modules and packages
it worked for me.

Problems with Install of Cartopy on Python3 MacOS

I have installed the latest versions of Proj and GEOS but still get the following error when Installing Cartopy. Proj and Geos installed fine and I double checked their install.
pip install Cartopy
Collecting Cartopy
Using cached https://files.pythonhosted.org/packages/e5/92/fe8838fa8158931906dfc4f16c5c1436b3dd2daf83592645b179581403ad/Cartopy-0.17.0.tar.gz
Installing build dependencies ... done
Getting requirements to build wheel ... error
ERROR: Complete output from command /Library/Frameworks/Python.framework/Versions/3.7/bin/python3.7 /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /var/folders/hn/gs9rm9416l72qbz4bsqd0w5r0000gn/T/tmp9zqrg2u1:
ERROR: setup.py:171: UserWarning: Unable to determine GEOS version. Ensure you have 3.3.3 or later installed, or installation may fail.
'.'.join(str(v) for v in GEOS_MIN_VERSION), ))
setup.py:227: UserWarning: Unable to determine Proj version. Ensure you have 4.9.0 or later installed, or installation may fail.
'.'.join(str(v) for v in PROJ_MIN_VERSION), ))
Proj version 0.0.0 is installed, but cartopy requires at least version 4.9.0.
ERROR: Command "/Library/Frameworks/Python.framework/Versions/3.7/bin/python3.7 /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /var/folders/hn/gs9rm9416l72qbz4bsqd0w5r0000gn/T/tmp9zqrg2u1" failed with error code 1 in /private/var/folders/hn/gs9rm9416l72qbz4bsqd0w5r0000gn/T/pip-install-yh57wjuy/Cartopy
I had the same issue, and fixed it on my machine by installing using conda instead of pip, which is what the project reccomends https://scitools.org.uk/cartopy/docs/latest/installing.html

Tensor flow package installation in PyCharm

I have been successfully using PyCharm for my python work.All the packages can be easily installed by going to settings and then project interpreter but tensorflow installation is showing error.In suggestions it asked me to upgrade pip module.But even after that it shows error with following message:
" Could not find a version that satisfies the requirement tensorflow (from versions: ) No matching distribution found for tensorflow"
I am able to install all other packages but error is with tensorflow only.I am using windows.
Please run pip install tensorflow in command line and post the output here. Tensorflow can be installed on Windows but the process is often annoying.
You could also tried anaconda. It is has very nice UI and you could switch between different version.

PyQt5-5.8.2 doesn't function on Windows 10

I need to install qscintilla. I use pip for that:
> pip install qscintilla
PyQt5 automatically upgrades to the latest version '5.8.2', and sip upgrades to '4.19.2'. I suppose this has to do with the needs of qscintilla. Perhaps the latest version of qscintilla needs the latest PyQt version to operate properly.
Unfortunately, PyQt5-5.8.2 combined with sip-4.19.2 don't work on Windows 10. I get the following error:
> python
>>> import PyQt5.QtWidgets
ImportError: DLL load failed: The specified module could not be found.
I have checked my PATH variable in Windows 10, and I found the following directory: C:\Anaconda3\Library\bin. I've checked that folder, and the dll's are all present: Qt5Widgets.dll, 'Qt5Gui.dll`, ... So I can hardly believe that Python cannot find them.
I will now go through the things I've tried so far.
1. Clean install of Anaconda => upgrade PyQt5.
I've removed Python completely from my PC, and installed Anaconda from scratch: Python 3.6 for Windows 64-bit.
Anaconda is shipped with an older version of PyQt5. I check the version like this:
> python
>>> from PyQt5.QtCore import QT_VERSION_STR
>>> from PyQt5.Qt import PYQT_VERSION_STR
>>> from sip import SIP_VERSION_STR
>>>
>>> QT_VERSION_STR
>>> '5.6.2'
>>> PYQT_VERSION_STR
>>> '5.6'
>>> SIP_VERSION_STR
>>> '4.18'
I simply upgrade my PyQt version, because I know that the qscintilla installation would do that anyway. If the problem is present after upgrading PyQt (and before installing qscintilla), I can rule out possible problems caused by the qscintilla installation. So here we go:
> pip install pyqt5 --upgrade
Collecting pyqt5
...
Successfully installed pyqt5-5.8.2 sip-4.19.2
As I expected, the upgraded version of pyqt results in the error:
> python
>>> import PyQt5.QtWidgets
ImportError: DLL load failed: The specified module could not be found.
2. Install PyQt5-5.7.1 instead of PyQt5-5.8.2.
I've found a wheel file from PyQt5-5.7.1 on this page: https://pypi.python.org/pypi/PyQt5/5.7.1
I hope that qscintilla will work on this one too. After all, it is a quite recent version. But first, I want to find out if I get it installed properly, and if the error above has gone.
> pip uninstall PyQt5
> pip uninstall sip
>
> pip install C:\..\Downloads\PyQt5-5.7.1-5.7.1-cp34.cp35.cp36-none-win_amd64.whl --no-cache-dir
...
Successfully installed pyqt5-5.7.1 sip-4.19.2
Unfortunately, the error persists.
3. Answers from StackOverflow.
I've checked several posts on StackOverflow, but none of them helped me out.
This post is too old: PyQt5 : The DLL load failed : the specified module could not be found
This post gives a possible reason: "Probably it's because pyqt .pyd files are linked against python3.dll, and not python3.6 dll." DLL load failed when importing PyQt5 . The answer suggests that I should use an older version of PyQt5. I've tried that (see above), but it still fails. The answer also suggests to build PyQt5 from the source code. I've tried that as well, but the build process gets stuck..
Can anyone help me? Perhaps you have successfully built the latest PyQt5-5.8.2 version from source code into a wheel file? I would be so happy if you share that file.
The root issue for me was different versions of PyQt wheel (5.9) and pyqt windows distro (5.6 - the last precompiled version available).
I found matching 5.6 wheel, but it only supported Python 3.5.
So, I downgraded Python to 3.5 and installed PyQt5-5.6-cp35-none-win_amd64.whl
pip install pyqt5==5.6
works equally well.
I found a workaround: don't use Anaconda. I deleted Anaconda from my PC and did a fresh install like this:
1. Install Python 64-bit
Download the 64-bit installer for Windows from this URL: https://www.python.org/downloads/release/python-361/
Make sure to include pip when asked for the installation options!
2. Install PyQt5
Install PyQt5 by typing the following in your Windows command terminal:
> pip install PyQt5 --no-cache-dir
...
Successfully installed PyQt5-5.8.2 sip-4.19.2
The --no-cache-dir option makes sure that pip will not use an old version stored somewhere on your computer, but download the latest one instead.
3. Install QScintilla
Install QScintilla like this:
> pip install qscintilla --no-cache-dir
Successfully installed qscintilla-2.10
It does work on windows 10. Your application failed to access specified DLL. A restart is required to get it working. I went through all the answers in the SO forums and it turns out a computer restart can set everything straight. so restart your pc.

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