Introduction to Machine Learning

In Python, you can assign the same object to multiple variables at once.

>>> x = y = 558
>>> print(x)
>>> print(y)

You can also perform multiple assignments simultaneously.

>>> x, y, z = 5, 5, 8
>>> print(x)
>>> print(y)
>>> print(z)

This naturally allows you to easily swap the values of variables, without requiring an intermediate variable.

>>> x = 5
>>> y = 8
>>> x, y = y, x
>>> print(x)
>>> print(y)

“Shortcut” assignment operators

You can also use these “shortcut” assignment operators just like in C++: +=, -=, *=, /=, %=, //=, **=

x += y is equivalent to x = x + y.

You CANNOT do x++ and --y in Python. Sorry! Remember one of the philosophies behind Python – there should preferably be only one (obvious) way to do something.