Create Python tuple with assignment expression

gistfile1.txt

# The following example demonstrates a use of a Python assignment expression in the course of parsing a str into a tuple.
# The value kid contains a key type and a key lookup id, delimited by '-'.  The goal is to split them apart and
# convert the key lookup id to int, with little regard for readability.

kid = 'pwid-43'
key_type, key_sn = ((x:=kid.split('-'))[0], int(x[1]))

# To limit the scope of the variable to the expression, one can wrap the expression into a lambda function.

key_type, key_sn = (lambda kid: ((x:=kid.split('-'))[0], int(x[1])))(kid)