Middle
a = 4 b = [4] tulkojums = (a, b) a = 5 b.append(5) Jautājums: kāda ir rezultāta vērtība pēc visu rindu izpildes un kāpēc?
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After executing all lines, the variable result will be equal to (4, [4, 5]).
Explanation:
- In the line
result = (a, b), a tuple is created whereais the number 4 andbis a reference to the list[4]. - Then,
ais changed to 5, but this does not affect the already created tuple, because numbers are immutable objects and the tuple stores the value 4. - The call
b.append(5)modifies the listbin place, adding the element 5. - Since the tuple contains a reference to the list
b, changes to the list are reflected inside the tuple.
Result:
result == (4, [4, 5]) # True