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Reassigning to an Empty List: Using the clear() Method: Using the del Statement: Using List Slicing: Each of these methods effectively empties a list in Python. You can choose the method that best fits your particular use case, keeping in mind whether you want to maintain the original list object or not. Reassigning a list to an empty list, such as using nums = [], has specific side effects while considering the management of references in Python. Here are the key points to understand: Identity Change: Garbage Collection: Potential Confusion in Mutable Operations: In summary, reassignment can lead to the unintentional decoupling of references to lists in Python, which is essential to consider when managing mutable data types. By Liner |
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unchanged. Only the variable nums will point to the new empty list. |
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unchanged. Only the variable nums will point to the new empty list.
nums = [1, 2, 3]
list_a = nums
nums = [] # Now nums points to an empty list
print(list_a) # Outputs: [1, 2, 3]