Simplify documentation after dropping Python 3.9 support.

- Remove redundant "Python 3.10" tabs from tutorials (14 instances)
- Rename "Python 3.10+" tabs to "Annotated" for clarity
- Delete obsolete py38 example files (20 files)

Author: tobiasraabe

docs/source/tutorials/defining_dependencies_products.md

@@ -4,8 +4,8 @@ Define task dependencies and products to run your tasks.
 
 Defining dependencies and products also determines task execution order.
 
-This tutorial offers you different interfaces. For type annotations, see the
-`Python 3.10+` tabs. You find a tutorial on type hints {doc}`here <../type_hints>`.
+This tutorial offers you different interfaces. For type annotations, see the `Annotated`
+tabs. You find a tutorial on type hints {doc}`here <../type_hints>`.
 
 If you want to avoid type annotations for now, look at the tab named `produces`.
 
@@ -46,8 +46,8 @@ in `task_data_preparation.py`.
 
 `````{tab-set}
 
-````{tab-item} Python 3.10+
-:sync: python310plus
+````{tab-item} Annotated
+:sync: annotated
 
 ```{literalinclude} ../../../docs_src/tutorials/defining_dependencies_products_products_py310.py
 :emphasize-lines: 11
@@ -58,18 +58,6 @@ task has finished, pytask will check whether the file exists.
 
 ````
 
-````{tab-item} Python 3.10
-:sync: python38plus
-
-```{literalinclude} ../../../docs_src/tutorials/defining_dependencies_products_products_py38.py
-:emphasize-lines: 11
-```
-
-{class}`~pytask.Product` allows marking an argument as a product. After the
-task has finished, pytask will check whether the file exists.
-
-````
-
 ````{tab-item} produces
 :sync: produces
 
@@ -100,8 +88,8 @@ we will define it in `task_plot_data.py`.
 
 `````{tab-set}
 
-````{tab-item} Python 3.10+
-:sync: python310plus
+````{tab-item} Annotated
+:sync: annotated
 
 To specify the task relies on `data.pkl`, add the path
 to the function signature with any argument name (here `path_to_data`).
@@ -115,21 +103,6 @@ annotation are dependencies of the task.
 
 ````
 
-````{tab-item} Python 3.10
-:sync: python38plus
-
-To specify the task relies on `data.pkl`, add the path
-to the function signature with any argument name (here `path_to_data`).
-
-pytask assumes that all function arguments that do not have the {class}`~pytask.Product`
-annotation are dependencies of the task.
-
-```{literalinclude} ../../../docs_src/tutorials/defining_dependencies_products_dependencies_py38.py
-:emphasize-lines: 11
-```
-
-````
-
 ````{tab-item} produces
 :sync: produces
 
@@ -158,24 +131,15 @@ are assumed to point to a location relative to the task module.
 
 `````{tab-set}
 
-````{tab-item} Python 3.10+
-:sync: python310plus
+````{tab-item} Annotated
+:sync: annotated
 
 ```{literalinclude} ../../../docs_src/tutorials/defining_dependencies_products_relative_py310.py
 :emphasize-lines: 8
 ```
 
 ````
 
-````{tab-item} Python 3.10
-:sync: python38plus
-
-```{literalinclude} ../../../docs_src/tutorials/defining_dependencies_products_relative_py38.py
-:emphasize-lines: 8
-```
-
-````
-
 ````{tab-item} produces
 :sync: produces
 
@@ -192,8 +156,8 @@ Of course, tasks can have multiple dependencies and products.
 
 `````{tab-set}
 
-````{tab-item} Python 3.10+
-:sync: python310plus
+````{tab-item} Annotated
+:sync: annotated
 
 ```{literalinclude} ../../../docs_src/tutorials/defining_dependencies_products_multiple1_py310.py
 ```
@@ -207,21 +171,6 @@ structures if needed.
 
 ````
 
-````{tab-item} Python 3.10
-:sync: python38plus
-
-```{literalinclude} ../../../docs_src/tutorials/defining_dependencies_products_multiple1_py38.py
-```
-
-You can group your dependencies and product if you prefer not to have a function
-argument per input. Use dictionaries (recommended), tuples, lists, or more nested
-structures if needed.
-
-```{literalinclude} ../../../docs_src/tutorials/defining_dependencies_products_multiple2_py38.py
-```
-
-````
-
 ````{tab-item} produces
 :sync: produces
 

docs/source/tutorials/repeating_tasks_with_different_inputs.md

@@ -13,22 +13,14 @@ different seeds and output paths as default arguments of the function.
 
 `````{tab-set}
 
-````{tab-item} Python 3.10+
-:sync: python310plus
+````{tab-item} Annotated
+:sync: annotated
 
 ```{literalinclude} ../../../docs_src/tutorials/repeating_tasks_with_different_inputs1_py310.py
 ```
 
 ````
 
-````{tab-item} Python 3.10
-:sync: python38plus
-
-```{literalinclude} ../../../docs_src/tutorials/repeating_tasks_with_different_inputs1_py38.py
-```
-
-````
-
 ````{tab-item} produces
 :sync: produces
 
@@ -49,22 +41,14 @@ You can also add dependencies to repeated tasks just like with any other task.
 
 `````{tab-set}
 
-````{tab-item} Python 3.10+
-:sync: python310plus
+````{tab-item} Annotated
+:sync: annotated
 
 ```{literalinclude} ../../../docs_src/tutorials/repeating_tasks_with_different_inputs2_py310.py
 ```
 
 ````
 
-````{tab-item} Python 3.10
-:sync: python38plus
-
-```{literalinclude} ../../../docs_src/tutorials/repeating_tasks_with_different_inputs2_py38.py
-```
-
-````
-
 ````{tab-item} produces
 :sync: produces
 
@@ -109,22 +93,14 @@ For example, the following function is parametrized with tuples.
 
 `````{tab-set}
 
-````{tab-item} Python 3.10+
-:sync: python310plus
+````{tab-item} Annotated
+:sync: annotated
 
 ```{literalinclude} ../../../docs_src/tutorials/repeating_tasks_with_different_inputs3_py310.py
 ```
 
 ````
 
-````{tab-item} Python 3.10
-:sync: python38plus
-
-```{literalinclude} ../../../docs_src/tutorials/repeating_tasks_with_different_inputs3_py38.py
-```
-
-````
-
 ````{tab-item} produces
 :sync: produces
 
@@ -150,22 +126,14 @@ a unique name for the iteration.
 
 `````{tab-set}
 
-````{tab-item} Python 3.10+
-:sync: python310plus
+````{tab-item} Annotated
+:sync: annotated
 
 ```{literalinclude} ../../../docs_src/tutorials/repeating_tasks_with_different_inputs4_py310.py
 ```
 
 ````
 
-````{tab-item} Python 3.10
-:sync: python38plus
-
-```{literalinclude} ../../../docs_src/tutorials/repeating_tasks_with_different_inputs4_py38.py
-```
-
-````
-
 ````{tab-item} produces
 :sync: produces
 
@@ -236,22 +204,14 @@ Following these three tips, the parametrization becomes
 
 `````{tab-set}
 
-````{tab-item} Python 3.10+
-:sync: python310plus
+````{tab-item} Annotated
+:sync: annotated
 
 ```{literalinclude} ../../../docs_src/tutorials/repeating_tasks_with_different_inputs5_py310.py
 ```
 
 ````
 
-````{tab-item} Python 3.10
-:sync: python38plus
-
-```{literalinclude} ../../../docs_src/tutorials/repeating_tasks_with_different_inputs5_py38.py
-```
-
-````
-
 ````{tab-item} produces
 :sync: produces
 

docs/source/tutorials/using_a_data_catalog.md

@@ -55,22 +55,14 @@ of our tasks. Here we see again the signature of the task function.
 
 `````{tab-set}
 
-````{tab-item} Python 3.10+
-:sync: python310plus
+````{tab-item} Annotated
+:sync: annotated
 
 ```{literalinclude} ../../../docs_src/tutorials/defining_dependencies_products_products_py310.py
 :lines: 10-12
 ```
 ````
 
-````{tab-item} Python 3.10
-:sync: python38plus
-
-```{literalinclude} ../../../docs_src/tutorials/defining_dependencies_products_products_py38.py
-:lines: 10-12
-```
-````
-
 ````{tab-item} produces
 :sync: produces
 
@@ -94,8 +86,8 @@ The following tabs show you how to use the data catalog given the interface you
 
 `````{tab-set}
 
-````{tab-item} Python 3.10+
-:sync: python310plus
+````{tab-item} Annotated
+:sync: annotated
 
 Use `data_catalog["data"]` as an default argument to access the
 {class}`~pytask.PickleNode` within the task. When you are done transforming your
@@ -107,19 +99,6 @@ Use `data_catalog["data"]` as an default argument to access the
 
 ````
 
-````{tab-item} Python 3.10
-:sync: python38plus
-
-Use `data_catalog["data"]` as an default argument to access the
-{class}`~pytask.PickleNode` within the task. When you are done transforming your
-{class}`~pandas.DataFrame`, save it with {meth}`~pytask.PickleNode.save`.
-
-```{literalinclude} ../../../docs_src/tutorials/using_a_data_catalog_2_py38.py
-:emphasize-lines: 10, 21
-```
-
-````
-
 ````{tab-item} ​produces
 :sync: produces
 
@@ -133,7 +112,7 @@ Use `data_catalog["data"]` as an default argument to access the
 
 ````
 
-````{tab-item} ​Python 3.10+ & Return
+````{tab-item} ​Annotated & Return
 :sync: return
 
 An elegant way to use the data catalog is via return type annotations. Add
@@ -158,22 +137,13 @@ Following one of the interfaces gives you immediate access to the
 
 `````{tab-set}
 
-````{tab-item} Python 3.10+
-:sync: python310plus
+````{tab-item} Annotated
+:sync: annotated
 
 ```{literalinclude} ../../../docs_src/tutorials/using_a_data_catalog_3_py310.py
 :emphasize-lines: 12
 ```
 
-````
-
-````{tab-item} Python 3.10
-:sync: python38plus
-
-```{literalinclude} ../../../docs_src/tutorials/using_a_data_catalog_3_py38.py
-:emphasize-lines: 12
-```
-
 ````
 `````
 
@@ -232,25 +202,16 @@ different node types which is not relevant now.
 
 `````{tab-set}
 
-````{tab-item} Python 3.10+
-:sync: python310plus
+````{tab-item} Annotated
+:sync: annotated
 
 ```{literalinclude} ../../../docs_src/tutorials/using_a_data_catalog_5_py310.py
 :emphasize-lines: 11, 12
 ```
 
 ````
 
-````{tab-item} Python 3.10
-:sync: python38plus
-
-```{literalinclude} ../../../docs_src/tutorials/using_a_data_catalog_5_py38.py
-:emphasize-lines: 11, 12
-```
-
-````
-
-````{tab-item} ​Python 3.10+ & Return
+````{tab-item} ​Annotated & Return
 :sync: return
 
 ```{literalinclude} ../../../docs_src/tutorials/using_a_data_catalog_5_py310_return.py