'Why ImportError: No module named lightgbm

My OS is Ubuntu, and I've followed the official installation guide to install lightgbm. However, when I import it, this error is raised:

ImportError: No module named lightgbm

How can I solve this?

Do I also need to go to /python-package folder to run setup.py after running those linux commandlines?

pythonubuntumachine-learninglightgbmtypescriptionic-frameworkionic-react


Solution 1:[1]

I had the same problem, and solved running the installation directly on the notebook 

!pip install lightgbm

Solution 2:[2]

conda install -c conda-forge lightgbm solved the problem for me you need just run in a notebook cell before importing

Solution 3:[3]

For Windows users, VC runtime <https://go.microsoft.com/fwlink/?LinkId=746572> is needed if Visual Studio (2015 or 2017) is not installed.

Install wheel <http://pythonwheels.com> via pip install wheel first. After that download the wheel file and install from it:

pip install lightgbm

Solution 4:[4]

Thank you for above question and answers, had a similar issue.

Problem:

After successfull install of lightgbm, I was getting the error ImportError: No module named 'lightgbm' (in Jupyter Notebook on Google Cloud's Notebook Instance in AI Platform project).

Issue:

Realized that the install of lightgbm was in Python 2.7 even when the notebook was running in Python 3 (path: './.local/lib/python2.7/site-packages').

Solution:

The error was gone after the Jupyter Notebook was set to run on Python 2 instead of Python 3.

Solution 5:[5]

The following should do the trick: 

export PATH=/usr/local/bin/anaconda3/bin${PATH:+:${PATH}}
PYTHONPATH=$PYTHONPATH:/usr/local/bin/anaconda3/lib/python3.6/site-packages

Note that you might need to change the paths if you are using a different Python version.

Solution 6:[6]

within Jupyter Notebook cell is: try running ???

import sys
!{sys.executable} -m pip install lightgbm

With python try, from pypi.org, this line

pip install lightgbm

or

pip3 install lightgbm

Also, you can try this one if you use anaconda

conda install lightgbm

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Rafaelcvo
Solution 2 Reza Farshi
Solution 3 Hamid
Solution 4 Nilesh Ingle
Solution 5 Giorgos Myrianthous
Solution 6 M E S A B O

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