Importing NumPy

Once you start a new IPython or Jupyter session, you can import the NumPy module and verify its version as follows:

In [1]: import numpy
In [2]: numpy.__version__
Out[2]: '1.11.3'

For the pieces of the package discussed here, I would recommend using NumPy version 1.8 or later. By convention, you'll find that most people in the scientific Python world will import NumPy using np as an alias:

In [3]: import numpy as np
In [4]: np.__version__
Out[4]: '1.11.3'

Throughout this chapter, and the rest of the book, we will stick to the same convention.