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0ae77d28f2 |
@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
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For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
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For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
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_1501 TILs and counting..._
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_1500 TILs and counting..._
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---
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---
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@@ -885,7 +885,6 @@ _1501 TILs and counting..._
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- [Access Instance Variables](python/access-instance-variables.md)
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- [Access Instance Variables](python/access-instance-variables.md)
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- [Create A Dummy DataFrame In Pandas](python/create-a-dummy-dataframe-in-pandas.md)
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- [Create A Dummy DataFrame In Pandas](python/create-a-dummy-dataframe-in-pandas.md)
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- [Store And Access Immutable Data In A Tuple](python/store-and-access-immutable-data-in-a-tuple.md)
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- [Test A Function With Pytest](python/test-a-function-with-pytest.md)
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- [Test A Function With Pytest](python/test-a-function-with-pytest.md)
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- [Use pipx To Install End User Apps](python/use-pipx-to-install-end-user-apps.md)
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- [Use pipx To Install End User Apps](python/use-pipx-to-install-end-user-apps.md)
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@@ -1,49 +0,0 @@
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# Store And Access Immutable Data In A Tuple
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You can store heterogeneous data (of varying types) as a _tuple_ which is a
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light-weight immutable data structure.
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You can be explicit about the tuple by wrapping the items in parentheses:
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```python
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>>> book = ('An Immense World', 'Ed Yong', 2022)
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```
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Though it is also possible to comma-separate the items and forego the
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parentheses.
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```python
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>>> book2 = 'The Shining', 'Stephen King', 1977
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>>> book2
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('The Shining', 'Stephen King', 1977)
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```
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Once we have our tuple, we can access any item from it positionally. We can
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also use _sequence unpacking_ to assign the values to a series of variables:
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```python
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>>> book[0]
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'An Immense World'
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>>> book[1]
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'Ed Yong'
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>>> book[2]
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2022
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>>> title, author, publication_year = book
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>>> title
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'An Immense World'
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>>> author
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'Ed Yong'
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>>> publication_year
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2022
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```
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And, as promised, it is immutable (unlike lists):
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```python
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>>> book[1] = 'Agatha Christie'
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Traceback (most recent call last):
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File "<stdin>", line 1, in <module>
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TypeError: 'tuple' object does not support item assignment
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```
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[source](https://docs.python.org/3/tutorial/datastructures.html#tuples-and-sequences)
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