if word in data: return data[word] else: return "The word doesn't exist. Please double check it."
dict = {"key1": 1, "key2": 2} if "key1" in dict:
d = {"key1": 10, "key2": 23} if "key1" in d: print("this will execute") if "nonexistent key" in d: print("this will not")
>>> lod = [{1: "a"}, {2: "b"}] >>> any(1 in d for d in lod) True >>> any(3 in d for d in lod) False