ImportError: No module named numpy

This error message means that Python is unable to find the NumPy package/module. NumPy is a popular scientific computing package for Python that provides support for large, multi-dimensional arrays and matrices, as well as a variety of mathematical functions to operate on these arrays.

To resolve this error, you need to install NumPy using pip or another package installer:

1. Open a command prompt or terminal window.
2. Type "pip install numpy" (without quotes) and press Enter.
3. Wait for NumPy to download and install.
4. Once the installation is complete, try importing NumPy again in your Python script or interactive console.

If you're using an Anaconda distribution of Python, you can install NumPy using the following command:

conda install numpy

This will install NumPy and its dependencies within the Anaconda environment.