The itertools function in Python provides an efficient way for looping lists, tuples and dictionaries. The itertools.groupby function in itertools will be applied in this tutorial to group a list of dictionaries by a particular key.

To illustrate how this works, we will look at a list of students info (in dictionaries) and try to group these by “class” key such that at the end we will have a list of lists with the inner list being students in the same class.

#data-engineering #python