check if dict python code example

Example 1: check if dict key exists 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: check if is dictionary

isinstance(df, pd.DataFrame)
isinstance(df, dict)
isinstance(df, list)

Example 3: python check if false in dict

a_dictionary = {"a": 1, "b": 2}
contains_1 = 1 in a_dictionary.values()
print(contains_1)