Error "ModuleNotFoundError: No module named 'numpy'"; but NumPy is installed

Question

NumPy is installed via pip in Windows 7 64 bit, Python 3.

When trying to run code in the console (Far Manager), I have an error:

Traceback (most recent call last):
 File "[path]\X.py", line 42, in <module>
  import numpy
ModuleNotFoundError: No module named 'numpy'

I tried to install NumPy, but I failed, because it was already installed:

pip install numpy

Requirement already satisfied: numpy in c:\program files (x86)\python37-32\lib\site-packages (1.17.0)

This is exactly the right folder, and all other libraries work in it correctly. I tried to uninstall NumPy and then install again via pip, but nothing changed.

Checking Python version python -- version

Python 3.7.3

Checking pip version pip -V

pip 19.2.1 from c:\program files (x86)\python37-32\lib\site-packages\pip (python 3.7)

There is no other Python version on my computer. I'm not sure but maybe numpy used to work before I installed matplotlib (via pip, of course).

checked your environment variable 'path' under the system settings? are python/scripts etc. folders specified correctly? — FObersteiner
– FObersteiner, Commented Jul 30, 2019 at 11:52
you have to install numpy using pip3 since you are using python3 — Nagaraju
– Nagaraju, Commented Jul 30, 2019 at 11:54
Possible duplicate of How to install numpy on windows using pip install? — Chris Mueller
– Chris Mueller, Commented Jul 30, 2019 at 12:27
@Praind, thanks you very much, I was stupid. There is no problem in 32-bit version of Python, but few days ago I installed 64-bit version together with Visual Studio, not for purpose. Uninstalled it and now everything is fine. — Nick Kolyshkin
– Nick Kolyshkin, Commented Jul 30, 2019 at 12:27

Peter Mortensen · Accepted Answer · 2022-08-23 14:08:11Z

3

I was wrong. There was another Python version, 64-bit, in the Visual Studio folder.

I uninstalled it, and now the problem is fixed.

edited Aug 23, 2022 at 14:08

Peter Mortensen

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answered Jul 30, 2019 at 12:30

Nick Kolyshkin

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Comments

Peter Mortensen · Accepted Answer · 2022-08-23 14:07:40Z

1

The PyPI NumPy package, which is automatically downloaded by pip, does not install correctly on Windows 7. I usually recommend that people install Python using the Anaconda distribution, because it comes with NumPy pre-installed.

Since you already have the Python interpreter installed, you can download the NumPy wheel from Christoph Gohlke's page and install it that way. Be sure to use pip to uninstall the current non-working version first.

Have a look at this Stack Overflow question, and specifically this answer for more details.

edited Aug 23, 2022 at 14:07

Peter Mortensen

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answered Jul 30, 2019 at 12:24

Chris Mueller

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