ModuleNotFoundError: No module named 'mlxtend'

Question

Hello Everyone,

I have an issue I have to immediately deal with it. I installed mlxtend and used the library for apriori(market research). In my first attempt it worked then next day I tried to update it with new data but it gives exactly this error ModuleNotFoundError: No module named 'mlxtend'. And I read everywhere to find where my mistake is? Sadly, I couldn't find it. I updated my mlxtend to current version however, again I faced with the exact, same problem. When I try to install mlxtend I got this as it is expected "Requirement already satisfied". I would appreciate and be glad if you have any suggestions? By the way, thanks to everyone who read this.

Are you sure you were running the same python interpreter in the same virtualenv both times? — Anonymous1847, Nov 13 '20 at 21:59
To be honest, I don't know how I can be sure about it? I am an industrial enginner so I generally use JAVA for running optimization programs such as CPLEX ang GUROBI and python for k-means and sort of algorithms. I don't know the technical details. — user14635144, Nov 13 '20 at 22:15
Ok, if it worked once I would tell you to uninstall and install again. — Flavio Moraes, Nov 13 '20 at 23:11
I uninstalled and tried again it successfully installs but again can’t find the module — user14635144, Nov 13 '20 at 23:20

score 3 · Answer 1 · answered Nov 13 '20 at 22:13

3

Are you installing it in the Conda shell or somewhere else? To ensure it gets installed in the correct environment type

%pip install mlxtend

from within the Jupyter notebook (in a cell at the top) that you are working in and execute that cell. If it installs successfully you can comment out that cell or remove it.

answered Nov 13 '20 at 22:13

Sanardi

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Thank you for your time and help. However it didn't install. :( – user14635144 Nov 13 '20 at 22:25
I uninstalled all packages and even python and re-installed all of them. I installed properly and consider the virtualenv issue but this time it gave me this error – user14635144 Nov 14 '20 at 12:07
Installing build dependencies ... error ERROR: Command errored out with exit status 1: Ignoring numpy: markers 'python_version == "3.6" and platform_system != "AIX" and platform_python_implementation == "CPython"' don't match your environment Ignoring numpy: markers 'python_version == "3.6" and platform_system != "AIX" and platform_python_implementation != "CPython"' don't match your environment Ignoring numpy: markers 'python_version == "3.7" and platform_system != "AIX"' don't match your environment Ignoring numpy: markers 'python_version == "3.6" and platform_system == "AIX"".. – user14635144 Nov 14 '20 at 12:17
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This seems to be a problem related to scikit learn. See if the solutions fro this question help you: https://stackoverflow.com/questions/29596237/import-check-arrays-from-sklearn – Flavio Moraes Nov 14 '20 at 14:47
@FlavioMoraes thank you sooo sooo much for your time and help! It works. I wish you the best. Again thank you – user14635144 Nov 14 '20 at 22:21

ModuleNotFoundError: No module named 'mlxtend'

1 Answers1