Add Store And Access Immutable Data In A Tuple as a Python TIL

python/store-and-access-immutable-data-in-a-tuple.md

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+# Store And Access Immutable Data In A Tuple
+
+You can store heterogeneous data (of varying types) as a _tuple_ which is a
+light-weight immutable data structure.
+
+You can be explicit about the tuple by wrapping the items in parentheses:
+
+```python
+>>> book = ('An Immense World', 'Ed Yong', 2022)
+```
+
+Though it is also possible to comma-separate the items and forego the
+parentheses.
+
+```python
+>>> book2 = 'The Shining', 'Stephen King', 1977
+>>> book2
+('The Shining', 'Stephen King', 1977)
+```
+
+Once we have our tuple, we can access any item from it positionally. We can
+also use _sequence unpacking_ to assign the values to a series of variables:
+
+```python
+>>> book[0]
+'An Immense World'
+>>> book[1]
+'Ed Yong'
+>>> book[2]
+2022
+>>> title, author, publication_year = book
+>>> title
+'An Immense World'
+>>> author
+'Ed Yong'
+>>> publication_year
+2022
+```
+
+And, as promised, it is immutable (unlike lists):
+
+```python
+>>> book[1] = 'Agatha Christie'
+Traceback (most recent call last):
+  File "<stdin>", line 1, in <module>
+TypeError: 'tuple' object does not support item assignment
+```
+
+[source](https://docs.python.org/3/tutorial/datastructures.html#tuples-and-sequences)