✨ Add source examples for Python 3.10 and 3.9 with updated syntax (#842)

Co-authored-by: Esteban Maya Cadavid <emayacadavid9@gmail.com>

docs/tutorial/fastapi/read-one.md

@@ -14,6 +14,32 @@ If you need to refresh how *path parameters* work, including their data validati
 
 ///
 
+//// tab | Python 3.10+
+
+```Python hl_lines="6"
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py310.py[ln:1-2]!}
+
+# Code here omitted 👈
+
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py310.py[ln:59-65]!}
+```
+
+////
+
+//// tab | Python 3.9+
+
+```Python hl_lines="8"
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py39.py[ln:1-4]!}
+
+# Code here omitted 👈
+
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py39.py[ln:61-67]!}
+```
+
+////
+
+//// tab | Python 3.7+
+
 ```Python hl_lines="8"
 {!./docs_src/tutorial/fastapi/read_one/tutorial001.py[ln:1-4]!}
 
@@ -22,12 +48,34 @@ If you need to refresh how *path parameters* work, including their data validati
 {!./docs_src/tutorial/fastapi/read_one/tutorial001.py[ln:61-67]!}
 ```
 
+////
+
 /// details | 👀 Full file preview
 
+//// tab | Python 3.10+
+
+```Python
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py310.py!}
+```
+
+////
+
+//// tab | Python 3.9+
+
+```Python
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py39.py!}
+```
+
+////
+
+//// tab | Python 3.7+
+
 ```Python
 {!./docs_src/tutorial/fastapi/read_one/tutorial001.py!}
 ```
 
+////
+
 ///
 
 For example, to get the hero with ID `2` we would send a `GET` request to:
@@ -48,6 +96,32 @@ And to use it, we first import `HTTPException` from `fastapi`.
 
 This will let the client know that they probably made a mistake on their side and requested a hero that doesn't exist in the database.
 
+//// tab | Python 3.10+
+
+```Python hl_lines="1  9-11"
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py310.py[ln:1-2]!}
+
+# Code here omitted 👈
+
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py310.py[ln:59-65]!}
+```
+
+////
+
+//// tab | Python 3.9+
+
+```Python hl_lines="3  11-13"
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py39.py[ln:1-4]!}
+
+# Code here omitted 👈
+
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py39.py[ln:61-67]!}
+```
+
+////
+
+//// tab | Python 3.7+
+
 ```Python hl_lines="3  11-13"
 {!./docs_src/tutorial/fastapi/read_one/tutorial001.py[ln:1-4]!}
 
@@ -56,12 +130,34 @@ This will let the client know that they probably made a mistake on their side an
 {!./docs_src/tutorial/fastapi/read_one/tutorial001.py[ln:61-67]!}
 ```
 
+////
+
 /// details | 👀 Full file preview
 
+//// tab | Python 3.10+
+
+```Python
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py310.py!}
+```
+
+////
+
+//// tab | Python 3.9+
+
+```Python
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py39.py!}
+```
+
+////
+
+//// tab | Python 3.7+
+
 ```Python
 {!./docs_src/tutorial/fastapi/read_one/tutorial001.py!}
 ```
 
+////
+
 ///
 
 ## Return the Hero
@@ -70,6 +166,32 @@ Then, if the hero exists, we return it.
 
 And because we are using the `response_model` with `HeroRead`, it will be validated, documented, etc.
 
+//// tab | Python 3.10+
+
+```Python hl_lines="6  12"
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py310.py[ln:1-2]!}
+
+# Code here omitted 👈
+
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py310.py[ln:59-65]!}
+```
+
+////
+
+//// tab | Python 3.9+
+
+```Python hl_lines="8  14"
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py39.py[ln:1-4]!}
+
+# Code here omitted 👈
+
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py39.py[ln:61-67]!}
+```
+
+////
+
+//// tab | Python 3.7+
+
 ```Python hl_lines="8  14"
 {!./docs_src/tutorial/fastapi/read_one/tutorial001.py[ln:1-4]!}
 
@@ -78,12 +200,34 @@ And because we are using the `response_model` with `HeroRead`, it will be valida
 {!./docs_src/tutorial/fastapi/read_one/tutorial001.py[ln:61-67]!}
 ```
 
+////
+
 /// details | 👀 Full file preview
 
+//// tab | Python 3.10+
+
+```Python
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py310.py!}
+```
+
+////
+
+//// tab | Python 3.9+
+
+```Python
+{!./docs_src/tutorial/fastapi/read_one/tutorial001_py39.py!}
+```
+
+////
+
+//// tab | Python 3.7+
+
 ```Python
 {!./docs_src/tutorial/fastapi/read_one/tutorial001.py!}
 ```
 
+////
+
 ///
 
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