assert field exists in dict code example

Example 1: 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")

Example 2: contanskey in python

d = {
  "a": 1,
  "b": 2
}

# To check if key is there in the dictionary
if "a" in d:
  print("Found")