What is the difference between a shallow copy and a deep copy of a nested tuple in Python?
Ava W

To check if a value is a dictionary with a specific key in Python, you can use theisinstance() function to check if the value is of typedict, and then use thein operator to verify if the specific key is present in the dictionary. Here's an example of how you can perform this check:

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def is_dict_with_key(value, key):
    return isinstance(value, dict) and key in value

# Usage:
my_dict = {"name": "John", "age": 25}

if is_dict_with_key(my_dict, "name"):
    print("The value is a dictionary with the key 'name'.")
else:
    print("The value is either not a dictionary or does not have the key 'name'.")

In the above code, theis_dict_with_key() function takes two parameters:value, representing the value to check, andkey, representing the specific key to verify in the dictionary. The function first usesisinstance(value, dict) to check ifvalue is of typedict. This ensures thatvalue is indeed a dictionary object. Then, it uses thein operator to check if thekey is present in the dictionaryvalue. If both conditions are met, meaning the value is a dictionary and the key exists in the dictionary, the function returnsTrue, indicating that the value is a dictionary with the specific key. Otherwise, it returnsFalse. You can use theis_dict_with_key() function by providing a value and a key as arguments. It will check if the value is a dictionary and if it contains the specific key. The result is then printed accordingly. It's important to note that this check only verifies if the value is a dictionary with the specific key. It does not verify the key's value or the presence of any other keys in the dictionary.