NumPy (source code) is a Python code library that adds scientific computing capabilities such as N-dimensional array objects, FORTRAN and C++ code integration, linear algebra and Fourier transformations. NumPy serves as a required dependency for many other scientific computing packages such as pandas.
Blaze is a similar, but separate, ecosystem with additional tools for wrangling, cleaning, processing and analyzing data.
SciPy Lecture notes goes into the overall Python scientific computing ecosystem and how to use it.
The SciPy Cookbook contains instructions for various SciPy packages that were previously hosted on the SciPy wiki.
Robots and Generative Art and Python, oh my! uses Scipy, Numpy, and Matplotlib to generate some nice looking art that can even be written to paper using a plotter. This is a very cool example project that ties together the scientific world and the art world.
Lectures in Quantitative Economics: SciPy provides a good overview of SciPy compared to the specific NumPy project, as well as explanations for the wrappers SciPy provides over lower-level FORTRAN libraries.
A plea for stability in the SciPy ecosystem presents concerns from one scientist's perspective about how fast the Python programming ecosystem changes and that code can become backwards incompatible in only a few years. The issue is that many science projects last decades and therefore cannot follow the rate of change as easily as typical software development projects.
From Python to NumPy is an awesome resource that shows how to use your basic Python knowledge to learn how to do vectorization with NumPy.
The ultimate beginner's guide to NumPy explains how to install and import NumPy, then digs into using arrays for computation and how to perform operations that get the results you need for your data analysis.
Scientific Computing in Python: Introduction to NumPy and Matplotlib is a detailed tutorial that goes through the basics for NumPy and then connects it to Matplotlib.
Math to Code provides an interactive tutorial to learn how to implement math in NumPy.
101 NumPy Exercises for Data Analysis has a bunch of questions and answers to common ways to work with NumPy and is useful to understand what you can do with this library.
NumPy: creating and manipulating numerical data contains many code examples for common operations.
Python NumPy Array Tutorial is a starter tutorial specifically focused on using and working with NumPy's powerful arrays.
Probability distribution explorer contains graphs for understanding how different probabilities look when plotted. There is also code for implementing the visuals in NumPy and SciPy.