PYTHON

walrus operator python 3.8

# Loop over fixed length blocks using Walrus Operator
while (block := f.read(256)) != '':
    process(block)

Python walrus operator

#The walrus operator := assigns values to variables as part of a larger expression.
#In this example, the assignment expression helps avoid calling len() twice:

if (n := len(a)) > 10:
    print(f"List is too long ({n} elements, expected <= 10)")