Which method is used to completely empty a dictionary in Python?

Which method is used to completely empty a dictionary in Python?

• A. clear()
• B. remove()
• C. delete()
• D. empty()

Answer: (A)

The method used to completely empty a dictionary in Python is the clear() method. When this method is called on a dictionary, it removes all items from the dictionary, leaving it as an empty dictionary. This is a very efficient way to reset a dictionary without having to create a new one. For example, if you have a dictionary like this: ```python my_dict = {'key1': 'value1', 'key2': 'value2'} ``` After using `my_dict.clear()`, the dictionary would be empty: ```python my_dict.clear() print(my_dict) # Output: {} ``` This method directly modifies the original dictionary in place rather than creating a new dictionary. Being familiar with this method is useful when managing memory and resources in Python applications, as it avoids unnecessary object creation. The other methods mentioned do not serve the purpose of emptying a dictionary. The remove() method does not exist for dictionaries but is used with lists to remove specific items. The delete() keyword is not a method in Python for dictionaries; instead, del is used to delete specific entries or entire dictionaries. Lastly, empty() is not a built-in method for dictionaries in Python. Thus, understanding the functionality of clear() is

The method used to completely empty a dictionary in Python is the clear() method. When this method is called on a dictionary, it removes all items from the dictionary, leaving it as an empty dictionary. This is a very efficient way to reset a dictionary without having to create a new one.

For example, if you have a dictionary like this:

my_dict = {'key1': 'value1', 'key2': 'value2'}

After using my_dict.clear(), the dictionary would be empty:

my_dict.clear()

print(my_dict)  # Output: {}

This method directly modifies the original dictionary in place rather than creating a new dictionary. Being familiar with this method is useful when managing memory and resources in Python applications, as it avoids unnecessary object creation.

The other methods mentioned do not serve the purpose of emptying a dictionary. The remove() method does not exist for dictionaries but is used with lists to remove specific items. The delete() keyword is not a method in Python for dictionaries; instead, del is used to delete specific entries or entire dictionaries. Lastly, empty() is not a built-in method for dictionaries in Python. Thus, understanding the functionality of clear() is