python-assignment-expression.md

Python assignment expression :=

In Python 3.8 was introduced an assignment expression (walrus operator :=) which can be used as in the example below.

if x := 1:
  print(bool(x))

The assignment statement cannot be used as in the previous example.

if x = 1: # syntax error
  print(bool(x))

More information here:

• https://www.python.org/dev/peps/pep-0572/
• https://realpython.com/lessons/assignment-expressions/