How can I check if a string contains only digits in Python?
Benjamin C

1. Difference between a shallow copy and a deep copy of a nested tuple in Python: In Python, a shallow copy and a deep copy of a nested tuple differ in how they create and handle copies of the tuple and its elements. 1. Shallow Copy: A shallow copy of a nested tuple creates a new tuple object that references the same elements as the original tuple. In other words, the outer tuple is duplicated, but the inner objects are not. Both the original tuple and the shallow copy contain references to the same inner objects. Consequently, changes made to the inner objects are reflected in both the original tuple and the shallow copy. Here's an example of a shallow copy of a nested tuple:

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import copy

original_tuple = (1, (2, 3), (4, 5))
shallow_copy = copy.copy(original_tuple)

shallow_copy[1] += (6,)

print(original_tuple)  # Output: (1, (2, 3), (4, 5))
print(shallow_copy)  # Output: (1, (2, 3, 6), (4, 5))

In the above code,original_tuple is the original nested tuple, andshallow_copy is created using thecopy.copy() function. Modifying the inner object(2, 3) of theshallow_copy tuple affects both theshallow_copy tuple and theoriginal_tuple. 2. Deep Copy: A deep copy of a nested tuple creates a completely independent copy of both the outer tuple and the inner objects. It creates a new tuple object with duplicated inner objects. Consequently, changes made to the inner objects in one tuple are not reflected in the other. Here's