A tuple is a good way to pack multiple values into that cookie without having to define a separate class to contain them. I try to be judicious about this particular use, though.
3 A tuple is an immutable list. This means that, once you create a tuple, it cannot be modified. Read more about tuples and other sequential data types here.
Using a tuple instead of a list is like having an implied assert statement that this data is constant, and that special thought (and a specific function) is required to override that. Some tuples can be used as dictionary keys (specifically, tuples that contain immutable values like strings, numbers, and other tuples).
Named tuples are basically easy-to-create, lightweight object types. Named tuple instances can be referenced using object-like variable dereferencing or the standard tuple syntax. They can be used similarly to struct or other common record types, except that they are immutable. They were added in Python 2.6 and Python 3.0, although there is a recipe for implementation in Python 2.4. For ...
Note: This is asking for the reverse of the usual tuple-to-array conversion. I have to pass an argument to a (wrapped c++) function as a nested tuple. For example, the following works X = MyFunc...
It seems unnecessary and memory inefficient to recast into a list and use a temporary variable. You can just unpack into a tuple with the same name and while unpacking update whatever needs updating.
The difference between Tuple and ValueTuple is that Tuple is a reference type and ValueTuple is a value type. The latter is desirable because changes to the language in C# 7 have tuples being used much more frequently, but allocating a new object on the heap for every tuple is a performance concern, particularly when it's unnecessary.
Have you assigned the name 'tuple' as a variable name? it should work fine. L is a list and we want to convert it to a tuple. L = [1, 2, 3] tuple (L) By invoking tuple, you convert the list (L) into a tuple. As done above. >> (1, 2, 3) you can go ahead and access any item in the tuple using the square brackets. L [0] 1
