Software⏱️ 2 min read📅 2026-05-31

How to Fix: Error "Import Error: No module named numpy" on Windows

Error Import Error: No module named numpy on Windows resolved by installing the correct version of NumPy for Python 3.

Quick Answer: Install the correct version of NumPy that matches your Python 3 installation (e.g., numpy-1.3.0.win-amd64-py3.x.msi).

The error 'Import Error: No module named numpy' on Windows can be frustrating, especially when you've installed NumPy previously. It's essential to understand the root causes of this issue to find a suitable solution.

🛑 Root Causes of the Error

  • The most common cause is that NumPy was installed for Python 2.6, but you're trying to import it in Python 3.

✅ Best Solutions to Fix It

Method 1: Installing NumPy via pip

  1. Step 1: Open a command prompt or terminal as an administrator and type the following command: `pip install numpy` (make sure to use Python 3.x instead of Python 2.6)

Method 2: Installing NumPy via the msi installer

  1. Step 1: Download and run the NumPy msi installer for Python 3.x (make sure to select the correct version)

✨ Wrapping Up

To resolve the 'Import Error: No module named numpy' issue on Windows, ensure that you're installing NumPy for Python 3.x and follow one of the provided methods. If you're still experiencing issues, consider reinstalling Python or seeking further assistance.

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