Python tuple operations (tuple)

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A tuple is defined in the same way as a list, but the entire set of elements is surrounded by parentheses, not square brackets.
The elements of a Tuple are sorted in the order defined by the list.
The tuples index is the same as list starting from 0, so the first element of a non-empty tuple is always t[0].
A negative index is counted as a list from the tail of a tuple.
As with list shards (slice) can also be used. Note that when you split a list, you get a new list;
When a tuple is split, a new tuple is obtained.
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(1) You cannot add elements to a tuple. The Tuple does not have a append or extend method.
(2) You cannot delete an element from a tuple. The Tuple does not have a remove or pop method.
(3) You cannot find elements in a tuple. Tuple does not have an index method.
(4) However, you can use in to see if an element exists in a tuple.

A Tuple operates faster than a list. If you define a constant set of values, and the only
What you do with it is to constantly traverse it, using a tuple instead of a list.
? You can make your code more secure if you write-protect the data that you do not need to modify. Use
A tuple, rather than a list, has an implied Assert statement that indicates that the data is often
Amount If you have to change these values, you need to perform a tuple-to-list conversion (you need to make
With a special function).
? Tuples can be used as key in dictionary, but
It's not a list. In fact, things are more complicated than that. Dictionary key must be immutable
Of The tuple itself cannot be changed, but if you have a list of tuple
To be variable, it is unsafe to be used as a dictionary key. only strings, integers
or other dictionary-safe tuple can be used as dictionary key.
? Tuples can be used in string formatting and we'll see it very quickly.

Note:tuple to list and to Tuple
A Tuple can be converted into a list and vice versa. The built-in tuple function receives a list and returns a
A tuple that has the same element. The list function receives a tuple and returns a list. From the effect
See, a tuple freezes a list, and the list thaws a tuple.

Python tuple operations (tuple)