📝 Add source examples for Python 3.9 and 3.10 (#715)

* 📝 Add source examples for Python 3.9 and 3.10

* ✅ Add tests for new source examples for Python 3.9 and 3.10, still needs pytest markers

* ✅ Add tests for fastapi examples

* ✅ Update tests for FastAPI app testing, for Python 3.9 and 3.10, fixing multi-app testing conflicts

* ✅ Require Python 3.9 and 3.10 for tests

* ✅ Update tests with missing markers

Author: tiangolo

docs_src/advanced/decimal/tutorial001_py310.py

@@ -0,0 +1,59 @@
+from pydantic import condecimal
+from sqlmodel import Field, Session, SQLModel, create_engine, select
+
+
+class Hero(SQLModel, table=True):
+    id: int | None = Field(default=None, primary_key=True)
+    name: str = Field(index=True)
+    secret_name: str
+    age: int | None = Field(default=None, index=True)
+    money: condecimal(max_digits=5, decimal_places=3) = Field(default=0)
+
+
+sqlite_file_name = "database.db"
+sqlite_url = f"sqlite:///{sqlite_file_name}"
+
+engine = create_engine(sqlite_url, echo=True)
+
+
+def create_db_and_tables():
+    SQLModel.metadata.create_all(engine)
+
+
+def create_heroes():
+    hero_1 = Hero(name="Deadpond", secret_name="Dive Wilson", money=1.1)
+    hero_2 = Hero(name="Spider-Boy", secret_name="Pedro Parqueador", money=0.001)
+    hero_3 = Hero(name="Rusty-Man", secret_name="Tommy Sharp", age=48, money=2.2)
+
+    with Session(engine) as session:
+        session.add(hero_1)
+        session.add(hero_2)
+        session.add(hero_3)
+
+        session.commit()
+
+
+def select_heroes():
+    with Session(engine) as session:
+        statement = select(Hero).where(Hero.name == "Deadpond")
+        results = session.exec(statement)
+        hero_1 = results.one()
+        print("Hero 1:", hero_1)
+
+        statement = select(Hero).where(Hero.name == "Rusty-Man")
+        results = session.exec(statement)
+        hero_2 = results.one()
+        print("Hero 2:", hero_2)
+
+        total_money = hero_1.money + hero_2.money
+        print(f"Total money: {total_money}")
+
+
+def main():
+    create_db_and_tables()
+    create_heroes()
+    select_heroes()
+
+
+if __name__ == "__main__":
+    main()

docs_src/tutorial/automatic_id_none_refresh/tutorial001_py310.py

@@ -0,0 +1,79 @@
+from sqlmodel import Field, Session, SQLModel, create_engine
+
+
+class Hero(SQLModel, table=True):
+    id: int | None = Field(default=None, primary_key=True)
+    name: str
+    secret_name: str
+    age: int | None = None
+
+
+sqlite_file_name = "database.db"
+sqlite_url = f"sqlite:///{sqlite_file_name}"
+
+engine = create_engine(sqlite_url, echo=True)
+
+
+def create_db_and_tables():
+    SQLModel.metadata.create_all(engine)
+
+
+def create_heroes():
+    hero_1 = Hero(name="Deadpond", secret_name="Dive Wilson")
+    hero_2 = Hero(name="Spider-Boy", secret_name="Pedro Parqueador")
+    hero_3 = Hero(name="Rusty-Man", secret_name="Tommy Sharp", age=48)
+
+    print("Before interacting with the database")
+    print("Hero 1:", hero_1)
+    print("Hero 2:", hero_2)
+    print("Hero 3:", hero_3)
+
+    with Session(engine) as session:
+        session.add(hero_1)
+        session.add(hero_2)
+        session.add(hero_3)
+
+        print("After adding to the session")
+        print("Hero 1:", hero_1)
+        print("Hero 2:", hero_2)
+        print("Hero 3:", hero_3)
+
+        session.commit()
+
+        print("After committing the session")
+        print("Hero 1:", hero_1)
+        print("Hero 2:", hero_2)
+        print("Hero 3:", hero_3)
+
+        print("After committing the session, show IDs")
+        print("Hero 1 ID:", hero_1.id)
+        print("Hero 2 ID:", hero_2.id)
+        print("Hero 3 ID:", hero_3.id)
+
+        print("After committing the session, show names")
+        print("Hero 1 name:", hero_1.name)
+        print("Hero 2 name:", hero_2.name)
+        print("Hero 3 name:", hero_3.name)
+
+        session.refresh(hero_1)
+        session.refresh(hero_2)
+        session.refresh(hero_3)
+
+        print("After refreshing the heroes")
+        print("Hero 1:", hero_1)
+        print("Hero 2:", hero_2)
+        print("Hero 3:", hero_3)
+
+    print("After the session closes")
+    print("Hero 1:", hero_1)
+    print("Hero 2:", hero_2)
+    print("Hero 3:", hero_3)
+
+
+def main():
+    create_db_and_tables()
+    create_heroes()
+
+
+if __name__ == "__main__":
+    main()

docs_src/tutorial/automatic_id_none_refresh/tutorial002_py310.py

@@ -0,0 +1,80 @@
+from sqlmodel import Field, Session, SQLModel, create_engine
+
+
+class Hero(SQLModel, table=True):
+    id: int | None = Field(default=None, primary_key=True)
+    name: str
+    secret_name: str
+    age: int | None = None
+
+
+sqlite_file_name = "database.db"
+sqlite_url = f"sqlite:///{sqlite_file_name}"
+
+engine = create_engine(sqlite_url, echo=True)
+
+
+def create_db_and_tables():
+    SQLModel.metadata.create_all(engine)
+
+
+def create_heroes():
+    hero_1 = Hero(name="Deadpond", secret_name="Dive Wilson")  # (1)!
+    hero_2 = Hero(name="Spider-Boy", secret_name="Pedro Parqueador")  # (2)!
+    hero_3 = Hero(name="Rusty-Man", secret_name="Tommy Sharp", age=48)  # (3)!
+
+    print("Before interacting with the database")  # (4)!
+    print("Hero 1:", hero_1)  # (5)!
+    print("Hero 2:", hero_2)  # (6)!
+    print("Hero 3:", hero_3)  # (7)!
+
+    with Session(engine) as session:  # (8)!
+        session.add(hero_1)  # (9)!
+        session.add(hero_2)  # (10)!
+        session.add(hero_3)  # (11)!
+
+        print("After adding to the session")  # (12)!
+        print("Hero 1:", hero_1)  # (13)!
+        print("Hero 2:", hero_2)  # (14)!
+        print("Hero 3:", hero_3)  # (15)!
+
+        session.commit()  # (16)!
+
+        print("After committing the session")  # (17)!
+        print("Hero 1:", hero_1)  # (18)!
+        print("Hero 2:", hero_2)  # (19)!
+        print("Hero 3:", hero_3)  # (20)!
+
+        print("After committing the session, show IDs")  # (21)!
+        print("Hero 1 ID:", hero_1.id)  # (22)!
+        print("Hero 2 ID:", hero_2.id)  # (23)!
+        print("Hero 3 ID:", hero_3.id)  # (24)!
+
+        print("After committing the session, show names")  # (25)!
+        print("Hero 1 name:", hero_1.name)  # (26)!
+        print("Hero 2 name:", hero_2.name)  # (27)!
+        print("Hero 3 name:", hero_3.name)  # (28)!
+
+        session.refresh(hero_1)  # (29)!
+        session.refresh(hero_2)  # (30)!
+        session.refresh(hero_3)  # (31)!
+
+        print("After refreshing the heroes")  # (32)!
+        print("Hero 1:", hero_1)  # (33)!
+        print("Hero 2:", hero_2)  # (34)!
+        print("Hero 3:", hero_3)  # (35)!
+    # (36)!
+
+    print("After the session closes")  # (37)!
+    print("Hero 1:", hero_1)  # (38)!
+    print("Hero 2:", hero_2)  # (39)!
+    print("Hero 3:", hero_3)  # (40)!
+
+
+def main():
+    create_db_and_tables()
+    create_heroes()
+
+
+if __name__ == "__main__":
+    main()

docs_src/tutorial/code_structure/tutorial001_py310/__init__.py

@@ -0,0 +1,29 @@
+from sqlmodel import Session
+
+from .database import create_db_and_tables, engine
+from .models import Hero, Team
+
+
+def create_heroes():
+    with Session(engine) as session:
+        team_z_force = Team(name="Z-Force", headquarters="Sister Margaret’s Bar")
+
+        hero_deadpond = Hero(
+            name="Deadpond", secret_name="Dive Wilson", team=team_z_force
+        )
+        session.add(hero_deadpond)
+        session.commit()
+
+        session.refresh(hero_deadpond)
+
+        print("Created hero:", hero_deadpond)
+        print("Hero's team:", hero_deadpond.team)
+
+
+def main():
+    create_db_and_tables()
+    create_heroes()
+
+
+if __name__ == "__main__":
+    main()

docs_src/tutorial/code_structure/tutorial001_py310/app.py

@@ -0,0 +1,10 @@
+from sqlmodel import SQLModel, create_engine
+
+sqlite_file_name = "database.db"
+sqlite_url = f"sqlite:///{sqlite_file_name}"
+
+engine = create_engine(sqlite_url)
+
+
+def create_db_and_tables():
+    SQLModel.metadata.create_all(engine)

docs_src/tutorial/code_structure/tutorial001_py310/database.py

@@ -0,0 +1,19 @@
+from sqlmodel import Field, Relationship, SQLModel
+
+
+class Team(SQLModel, table=True):
+    id: int | None = Field(default=None, primary_key=True)
+    name: str = Field(index=True)
+    headquarters: str
+
+    heroes: list["Hero"] = Relationship(back_populates="team")
+
+
+class Hero(SQLModel, table=True):
+    id: int | None = Field(default=None, primary_key=True)
+    name: str = Field(index=True)
+    secret_name: str
+    age: int | None = Field(default=None, index=True)
+
+    team_id: int | None = Field(default=None, foreign_key="team.id")
+    team: Team | None = Relationship(back_populates="heroes")

docs_src/tutorial/code_structure/tutorial001_py310/models.py

@@ -0,0 +1,29 @@
+from sqlmodel import Session
+
+from .database import create_db_and_tables, engine
+from .models import Hero, Team
+
+
+def create_heroes():
+    with Session(engine) as session:
+        team_z_force = Team(name="Z-Force", headquarters="Sister Margaret’s Bar")
+
+        hero_deadpond = Hero(
+            name="Deadpond", secret_name="Dive Wilson", team=team_z_force
+        )
+        session.add(hero_deadpond)
+        session.commit()
+
+        session.refresh(hero_deadpond)
+
+        print("Created hero:", hero_deadpond)
+        print("Hero's team:", hero_deadpond.team)
+
+
+def main():
+    create_db_and_tables()
+    create_heroes()
+
+
+if __name__ == "__main__":
+    main()

docs_src/tutorial/code_structure/tutorial001_py39/__init__.py

@@ -0,0 +1,10 @@
+from sqlmodel import SQLModel, create_engine
+
+sqlite_file_name = "database.db"
+sqlite_url = f"sqlite:///{sqlite_file_name}"
+
+engine = create_engine(sqlite_url)
+
+
+def create_db_and_tables():
+    SQLModel.metadata.create_all(engine)