Tuple Comparison in Python: A Deeper Look
When working with tuples in Python, it's essential to understand how comparison operators work. Take, for instance, the comparison:
(4, 5) < (3, 5)
Contrary to expectations, this comparison evaluates to False. To unravel this, let's delve into the mechanics of tuple comparison in Python.
Tuples are ordered sequences of elements. Python compares them position by position. It compares the first item of each tuple, then the second, and so on. The comparison stops as soon as a difference is encountered or all positions have been compared.
If the corresponding elements at each position are equal, the tuples are compared further. However, if a non-equal pair of elements is found, that comparison determines the result. In this case, (4, 5) and (3, 5) have different first elements, with 4 being greater than 3. Therefore, the overall comparison evaluates to False.
It's important to note that tuples are not vectors in n-dimensional space. They are ordered collections of elements, and comparisons are based on these individual elements. Also, tuples of different lengths are still compared lexicographically. The one that runs out of elements first is considered the smaller one. For example:
(1, 2) < (1, 2, 3)
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