has_key in python 3.8 code example

Example 1: haskey python

d = {'a': 1}
d.has_key('a')

Example 2: check dictionary has key python

d = {"key1": 10, "key2": 23}

if "key1" in d:
    print("this will execute")

if "nonexistent key" in d:
    print("this will not")