The correct answer is 0.

Here's the step by step explanation:

1. The `collections` module in Python provides alternatives to built-in container data types (like dict, list, set, and tuple).

2. `collections.defaultdict` is a dict subclass that calls a factory function to supply missing values. In other words, it does not raise a KeyError when you try to access a non-existent key. Instead, it initializes it with the element of the data type that you pass as an argument at the creation of defaultdict.

3. In this case, `collections.defaultdict(int)` is used, which means that if a key is not found in the dictionary, then instead of a KeyError being thrown, a new entry is created. The key is the missing element, and the value is the default value of int, which is 0.

4. So, when you try to print `ct[2]`, it will print 0 because 2 is not an existing key in the dictionary, and the default value for int is 0.

Question

The correct answer is 0.

Here's the step by step explanation:

1. The `collections` module in Python provides alternatives to built-in container data types (like dict, list, set, and tuple).

2. `collections.defaultdict` is a dict subclass that calls a factory function to supply missing values. In other words, it does not raise a KeyError when you try to access a non-existent key. Instead, it initializes it with the element of the data type that you pass as an argument at the creation of defaultdict.

3. In this case, `collections.defaultdict(int)` is used, which means that if a key is not found in the dictionary, then instead of a KeyError being thrown, a new entry is created. The key is the missing element, and the value is the default value of int, which is 0.

4. So, when you try to print `ct[2]`, it will print 0 because 2 is not an existing key in the dictionary, and the default value for int is 0.

Knowee AI · Accepted Answer

The correct answer is 0.

Here's the step by step explanation:

1. The `collections` module in Python provides alternatives to built-in container data types (like dict, list, set, and tuple).

2. `collections.defaultdict` is a dict subclass that calls a factory function to supply missing values. In other words, it does not raise a KeyError when you try to access a non-existent key. Instead, it initializes it with the element of the data type that you pass as an argument at the creation of defaultdict.

3. In this case, `collections.defaultdict(int)` is used, which means that if a key is not found in the dictionary, then instead of a KeyError being thrown, a new entry is created. The key is the missing element, and the value is the default value of int, which is 0.

4. So, when you try to print `ct[2]`, it will print 0 because 2 is not an existing key in the dictionary, and the default value for int is 0.

Select the correct answerWhat will be the output of the following Python code?import collectionsct=dict()ct=collections.defaultdict(int)print(ct[2])Options0‘ ‘An exception is thrown1

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