I checked the method of importing this package on the Internet, and I also entered the pip command in cmd, but it still cannot be imported. May I ask why?
Probably because the kernel of your jupyterhub has not the right environment.
Try to reinstall the package using the terminal of jupyter hub (see new drop box) it will do the trick once you have installed the package and refreshed the kernel.
Try this on your Jupyter cell:
pip install git+https://github.com/ematvey/pybacktest.git
Link to github https://github.com/ematvey/pybacktest
Edit for your comment:
run the below command on your Jupyter cell.
pip install pandas_datareader
I am using Python 3.9 on Windows 10 which I downloaded directly from the Microsoft Store.
I tried running a script in PowerShell: Bash *.sh
This script is supposed to tell my computer to execute a .py script which uses scipy.io and many other modules.
Then I received this error:
ModuleNotFoundError: No module named 'scipy'
My strategy was to make sure pip was up to date, then use it to install the desired packages, then run some commands to see if the packages were installed.
I ran this command to update pip:
python3 -m pip install --upgrade pip
I ran this command to get some modules:
python -m pip install --user numpy scipy matplotlib ipython jupyter pandas sympy nose
I also tried this command just in case:
pip install scipy
and got the result:
Requirement already satisfied ...
I ran the command pip list to make sure scipy was in the list (and it was there).
Then I ran the command python and my prompt changed to ">>>" and entered import scipy and did not receive any errors.
I am very confused as to how I have scipy installed yet have my script tell me it isn't there. Please help!
From what you have posted it looks like you have more than one python environment path in your system, because of which when you are installing these libraries they are installed at certain location while when you run the bash script it is using some other python location.
Try using these commands in both your terminal (cmd in windows) as well as in you bash script:
import sys
print(sys.path)
This will give you the python environment path (location where your python libraries are present), then compare both the path you get from your terminal as well as bash. Add the path you got from the terminal to your global environment in order to make sure the same python version is used everywhere.
You can also refer to this: Python modules not found over terminal but on python shell, Linux
I had the same issue. You might have multiple versions of python and you only installed scipy on the one you are not using
OR
you are using an IDE which has the option to use packages you install that are not by default in python. Pycharm has that. When you make a new project, it has a tick option saying "Inherit global site-packages" which means it will use additional packages you have installed any.
I had a massive crash today and lost a lot of work. I couldn't start Spyder after many attempts; even tried 'spyder --reset'. Nothing worked. I decided to download a new version of Anaconda and start over. Now, I'm trying to figure out why I can't run packages.
If I run this: import pyodbc
I get this: ModuleNotFoundError: No module named 'pyodbc'
So, I go to the command prompt to pip install pyodbc...and apparently it's already installed...
When I navigate to that path, I can see the package
...but Spyder is still telling me it's not installed. What's an easy fix for this?
i had similar crash problems on Windows 10, what I learned is that I had several non-conda versions of python on my PC, and I used 'pip install' in my environments so it messed up with conda packages and it stop working.
What I did is that I uninstalled anaconda and non-conda python, cleaned up registry from python mentions, installed fresh new miniconda, and 'conda install spyder' in the new env, conda have created new folder
C:\Users\~~~\.spyder-py3\
Inside of it I found "spyder.ini" file, where incorrect variable was set:
"spyder_pythonpath = "
I changed it from
['C:\Users\~~~\anaconda3\pkgs',
'C:\Users\~~~\anaconda3\envs']
to
['C:\Users\~~~\miniconda3\pkgs',
'C:\Users\~~~\miniconda3\envs']
Please Upvote it take so much time
First open Spyder and click Tools --> Open command prompt.
You should see the Command Window appear in the bottom right of your screen.
Here we install the Python package seaborn as an example.
# In the command line, type pip install seaborn
C:\Users\your_username\Documents\Python Scripts>pip install seaborn
This will install seaborn on your machine.
Note:
To upgrade the pip version on Windows, type python -m pip install --upgrade pip on the command line.
On Windows, all of your Python packages can be found in the directory of C:\Anaconda2\Lib\site-packages if you use the default path when you install Anaconda.
To upgrade the pip version on OS X, type pip install --upgrade pip on the command line.
I tried to install Numpy library with VisualStudio Code (VS Code) used the terminal and official website for instructions
Even though I followed each step I keep getting "This is the wrong setup.py file to run error"
I tried to update every element to not get an error, deleted and installed NumPy files in the directories which are in site-packages, and my anaconda files (i use jupyter as well but I need to implement this on my VSCode editor).
I also tried to get in the NumPy file and tried
pip install.
python setup.py build_ext --inplace
I used this site's instructions as well to install NumPy:
here I tried :
python -m pip install --user numpy
but keep getting the same error. What am I doing wrong?
In the screenshot you provided, I noticed that the installed module "numpy" exists in the "python3.7" folder, not in the "python3.8" you are currently using.
This is where my environment and numpy are located:
It is recommended that you use the shortcut key Ctrl+Shift+` to open a new terminal, VSCode will automatically enter the current environment, and then you can use "pip install numpy" to install numpy into "python3.8".
Or you can switch the environment directly to the python3.7 environment that includes numpy.
If it still doesn't work, you can uninstall numpy and reinstall it. ("pip uninstall numpy", "pip install numpy")
Since we are using pip to install the module numpy, we can use "pip --version" to check the currently used pip version, the module is installed in this environment:
I want to import sklearn but there is no module apparently:
ModuleNotFoundError: No module named 'sklearn'
I am using Anaconda and Python 3.6.1; I have checked everywhere but still can't find answers.
When I use the command:
conda install scikit-learn should this not just work?
Where does anaconda install the package?
I was checking the frameworks in my python library and there was nothing about sklearn only numpy and scipy.
Please help, I am new to using python packages especially via anaconda.
You can just use pip for installing packages, even when you are using anaconda:
pip install -U scikit-learn scipy matplotlib
This should work for installing the package.
And for Python 3.x just use pip3:
pip3 install -U scikit-learn scipy matplotlib
Will leave below two options that may help one solve the problem:
Using conda
Using pip
One might want to consider the notes at the end, specially before resorting to the 2nd option.
Option 1
If one wants to install it in the root and one follows the requirements - (Python (>= 2.7 or >= 3.4), NumPy (>= 1.8.2), SciPy (>= 0.13.3).) - the following should solve the problem
conda install scikit-learn
Alternatively, as mentioned here, one can specify the channel as follows
conda install -c anaconda scikit-learn
Let's say that one is working in the environment with the name ML.
Then the following should solve one's problem:
conda install -n ML scikit-learn
# or
conda install -n ML -c anaconda scikit-learn
Option 2
If the above doesn't work, on Anaconda Prompt one can also use pip (here's how to pip install scikit-learn), so the following may help
pip install scikit-learn
However, consider the last note below before proceeding.
Notes:
When using Anaconda, one needs to be aware of the environment that one is working.
Then, in Anaconda Prompt, one needs to run the following
conda $command -n $ENVIRONMENT_NAME $IDE/package/module
$command - Command that one intends to use (consult documentation for general commands)
$ENVIRONMENT NAME - The name of one's environment (if one is working in the root,
conda $command $IDE/package/module is enough)
$IDE/package/module - The name of the IDE or package or module
If one needs to install/update packages, the logic is the same as mentioned in the introduction. If you need more information on Anaconda Packages, check the documentation.
What is the flag -c.
pip doesn't manage dependencies the same way conda does and can, potentially, damage one's installation.
If you are using Ubuntu 18.04 or higher with python3.xxx then try this command
$ sudo apt install python3-sklearn
then try your command. hope it will work
I did the following:
import sys
!{sys.executable} -m pip install sklearn
I've tried a lot of things but finally, including uninstall with the automated tools. So, I've uninstalled manually scikit-learn.
sudo rm -R /home/ubuntu/.local/lib/python3.6/site-packages/sklearn
sudo rm -R /home/ubuntu/.local/lib/python3.6/site-packages/scikit_learn-0.20.0-py3.6.egg-info
And re-install using pip
sudo pip3.6 install -U scikit-learn
Hope that can help someone else!
This happened to me, I tried all the possible solutions with no luck!
Finaly I realized that the problem was with Jupyter notebook environment, not with sklearn!
I solved the problem by re-installing Jupyter at the same environment as sklearn
the command is: conda install -c anaconda ipython. Done...
The other name of sklearn in anaconda is scikit-learn. simply open your anaconda navigator, go to the environments, select your environment, for example tensorflow or whatever you want to work with, search for scikit_learn in the list of uninstalled packages, apply it and then you can import sklearn in your jupyter.
SOLVED:
The above did not help. Then I simply installed sklearn from within Jypyter-lab, even though sklearn 0.0 shows in 'pip list':
!pip install sklearn
import sklearn
What I learned later is that pip installs, in my case, packages in a different folder than Jupyter. This can be seen by executing:
import sys
print(sys.path)
Once from within Jupyter_lab notebook, and once from the command line using 'py notebook.py'.
In my case Jupyter list of paths where subfolders of 'anaconda' whereas Python list where subfolders of c:\users[username]...
On Windows, I had python 3+ version. pip version - 22.3.1
I had installed:
pip install sklearn
But, it seems it is deprecated with scikit-learn.
So, I did:
pip install scikit-learn
And, it worked!!!
Cause
Conda and pip install scikit-learn under ~/anaconda3/envs/$ENV/lib/python3.7/site-packages, however Jupyter notebook looks for the package under ~/anaconda3/lib/python3.7/site-packages.
Therefore, even when the environment is specified to conda, it does not work.
conda install -n $ENV scikit-learn # Does not work
Solution
pip 3 install the package under ~/anaconda3/lib/python3.7/site-packages.
Verify
After pip3, in a Jupyter notebook.
import sklearn
sklearn.__file__
~/anaconda3/lib/python3.7/site-packages/sklearn/init.py'
I had the same problem.
The issue is when we work on multiple anaconda environments, not all packages are installed in all environments.
you can check your conda environment by writing the following code in anaconda prompt:
conda env list
then you can check the packages installed in each environment :
conda list -n NAME_OF_THE_ENVIRONMENT
for me, the environment that I was working with , was missing sklearn, although the package was installed in the other environments.
therefore, I just simply installed sklearn package in that particular environment
conda install -n NAME_OF_THE_ENVIRONMENT scikit-learn
and the issue was resolved
install these ==>> pip install -U scikit-learn scipy matplotlib
if still getting the same error then ,
make sure that your imoprted statment should be correct. i made the mistike while writing ensemble so ,(check spelling)
its
should be >>> from sklearn.ensemble import RandomForestClassifier
I had the same issue as the author, and ran into the issue with and without Anaconda and regardless of Python version. Everyone's environment is different, but after resolving it for myself I think that in some cases it may be due to having multiple version of Python installed. Each installed Python version has its own \Lib\site-packages\ folder which can contain a unique set of modules for that Python version, and where the IDE looks into folder path that doesn't have scikit-learn in it.
One way to try solve the issue: you might clear your system of all other Python versions and their cached/temp files/system variables, and then only have one version of Python installed anywhere. Then install the dependencies Numpy and Scipy, and finally Scikit-learn.
More detailed steps:
Uninstall all Python versions and their launchers (e.g. from Control Panel in Windows) except the one version you want to keep. Delete any old Python version folders in the Python directory --uninstalling doesn't remove all files.
Remove other Python versions from your OS' Environment Variables (both under the system and user variables sections)
Clear temporary files. For example, for Windows, delete all AppData Temp cache files (in C:\Users\YourUserName\AppData\Local\Temp). In addition, you could also do a Windows disk cleanup for other temporary files, and then reboot.
If your IDE supports it, create a new virtual environment in Settings, then set your only installed Python version as the interpreter.
In your IDE, install the dependencies Scipy and Numpy from the module list first, then install Scikit-Learn.
As some others have suggested, the key is making sure your environment is set up correctly where everything points to the correct library folder on your computer where the Sklearn package is located. There are a few ways this can be resolved. My approach was more drastic, but it turns out that I had a very messy Python setup on my system so I had to start fresh.
Using Anaconda-navigator UI environment
When running Anaconda-navigator:
Choose the 'Environments' tab on the left and create a new environment (e.g. ML - see Gonçalo Peres answer above, I made one called 'CourseraML').
Set Python version 3.7 (for Coursera course Applied Machine Learning in Python). Also include R.
Then find modules to install using the 'not installed' drop-down menu item. Search for each module needed in the search bar and select. sklearn is part of scikit-learn. Select it and install (it should find all relevant dependencies). Modules needed for Applied ML course: seaborn, numpy, scikit-learn, pandas, matplotlib
You'll need to restart Jupyter Notebook and reopen your file.
Command line version of above:
conda install -n CourseraML seaborn scikit-learn pandas numpy matplotlib graphviz
Causes
-your jupyter notebook might be importing the sklearn and other libraries from the
another the location(path) than the libraries from conda or pip.
MY Problem
In my case, My jupyter notebook was importing the libraries for snap manager. Since, I install jupyter using the snap instead of other ways.
You can check where other libraries are being imported in jupyter using code:
import cv2 as cv
print(cv.__file__)
Solution
So , I uninstall jupyter notebook and then install notebook using conda.
sudo snap remove jupyter
conda install -c conda-forge notebook