No module named 'miplearn.instance.base'; 'miplearn.instance' is not a package

[HuigenYe]

Hi iSoron, when I use MIPlearn to run the code "tsp.py", it tells me that "No module named 'miplearn.instance.base'; 'miplearn.instance' is not a package". Is this because I made an error installing miplearn? Thank you for your reply.

[iSoron]

Hi @qwqjvruo, this is probably a package installation issue. Could you try the following:

# Create a new conda environment
$ conda create -n miplearn-test python=3.7

# Activate environment
$ conda activate miplearn-test

# Install miplearn
$ pip install miplearn

# Launch python and access TSP problem generator
$ python
>>> from miplearn.problems.tsp import TravelingSalesmanGenerator

[HuigenYe]

Hi iSoron, thank you for your reply. After using Python version 3.7 instead of 3.10, the problem was indeed solved. Thank you very much for your answer!