Can tuples be compared?
4 answers. Tuples are compared position by position: the first element of the first tuple is compared with the first element of the second tuple; if they are not equal (that is, the first is greater or less than the second) then that is the result of the comparison, otherwise the second element is considered, then the third and so on.
Table of Contents
How do you compare a list of tuples?
Tuple comparisons
- Compare the nth elements of each tuple (starting with the first, index 0) using the == operator; if they are the same, repeat this step with the next item.
- For two unequal elements, the element that is “less than” causes the tuple containing it to also be “less than” the other tuple.
What function is used to compare elements of two tuples?
The Python function tuple cmp() is used to compare two tuples of elements.
Can we add 2 tuples in Python?
You can combine tuples to form a new tuple. The addition operation simply performs a concatenation with tuples. You can only add or combine the same data types. Therefore, combining a tuple and a list gives an error.
Which is faster list or tuple?
The tuple is stored in a single block of memory. Creating a tuple is faster than creating a list. Creating a list is slower because two blocks of memory need to be accessed. An element in a tuple cannot be deleted or replaced.
What is the difference between a Python tuple and a Python list?
One of the most important differences between list and tuple is that list is mutable while tuple is immutable. This means that lists can be changed and tuples cannot be changed. So some operations can work on lists, but not on tuples.
How does tuple comparison work in Python 2.5?
This means that to compare equal, each element must compare equal and the two sequences must be of the same type and have the same length. The Python 2.5 documentation explains it well. Tuples and lists are compared lexicographically by comparing corresponding elements.
How does a tuple compare to a list?
In particular, tuples and lists are compared lexicographically by comparing corresponding elements. This means that to compare equal, each element must compare equal and the two sequences must be of the same type and have the same length.
How are tuples used to store data in Python?
Tuples are used to store multiple elements in a single variable. Tuple is one of the 4 built-in data types in Python used to store collections of data, the other 3 being List, Set, and Dictionary, all with different qualities and uses. A tuple is an ordered and immutable collection. Tuples are written with square brackets.
How are comparisons between two data structures in Python?
Comparisons between two data structures in Python tend to be deep comparisons. Whether we are comparing lists, tuples, sets, or dictionaries, when we ask if two of these objects are “equal”, Python will iterate through each sub-object and ask if each is “equal”. So, given a dictionary that maps tuples to lists of tuples: