python check is dictionary code example
Example 1: check if is dictionary
isinstance(df, pd.DataFrame)
isinstance(df, dict)
isinstance(df, list)
Example 2: how to know if a key is in a dictionary python
dict = {"key1": 1, "key2": 2}
if "key1" in dict:
Example 3: 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")