📝 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

docs_src/tutorial/fastapi/delete/tutorial001_py310.py

@@ -0,0 +1,97 @@
+from fastapi import FastAPI, HTTPException, Query
+from sqlmodel import Field, Session, SQLModel, create_engine, select
+
+
+class HeroBase(SQLModel):
+    name: str = Field(index=True)
+    secret_name: str
+    age: int | None = Field(default=None, index=True)
+
+
+class Hero(HeroBase, table=True):
+    id: int | None = Field(default=None, primary_key=True)
+
+
+class HeroCreate(HeroBase):
+    pass
+
+
+class HeroRead(HeroBase):
+    id: int
+
+
+class HeroUpdate(SQLModel):
+    name: str | None = None
+    secret_name: str | None = None
+    age: int | None = None
+
+
+sqlite_file_name = "database.db"
+sqlite_url = f"sqlite:///{sqlite_file_name}"
+
+connect_args = {"check_same_thread": False}
+engine = create_engine(sqlite_url, echo=True, connect_args=connect_args)
+
+
+def create_db_and_tables():
+    SQLModel.metadata.create_all(engine)
+
+
+app = FastAPI()
+
+
+@app.on_event("startup")
+def on_startup():
+    create_db_and_tables()
+
+
+@app.post("/heroes/", response_model=HeroRead)
+def create_hero(hero: HeroCreate):
+    with Session(engine) as session:
+        db_hero = Hero.from_orm(hero)
+        session.add(db_hero)
+        session.commit()
+        session.refresh(db_hero)
+        return db_hero
+
+
+@app.get("/heroes/", response_model=list[HeroRead])
+def read_heroes(offset: int = 0, limit: int = Query(default=100, le=100)):
+    with Session(engine) as session:
+        heroes = session.exec(select(Hero).offset(offset).limit(limit)).all()
+        return heroes
+
+
+@app.get("/heroes/{hero_id}", response_model=HeroRead)
+def read_hero(hero_id: int):
+    with Session(engine) as session:
+        hero = session.get(Hero, hero_id)
+        if not hero:
+            raise HTTPException(status_code=404, detail="Hero not found")
+        return hero
+
+
+@app.patch("/heroes/{hero_id}", response_model=HeroRead)
+def update_hero(hero_id: int, hero: HeroUpdate):
+    with Session(engine) as session:
+        db_hero = session.get(Hero, hero_id)
+        if not db_hero:
+            raise HTTPException(status_code=404, detail="Hero not found")
+        hero_data = hero.dict(exclude_unset=True)
+        for key, value in hero_data.items():
+            setattr(db_hero, key, value)
+        session.add(db_hero)
+        session.commit()
+        session.refresh(db_hero)
+        return db_hero
+
+
+@app.delete("/heroes/{hero_id}")
+def delete_hero(hero_id: int):
+    with Session(engine) as session:
+        hero = session.get(Hero, hero_id)
+        if not hero:
+            raise HTTPException(status_code=404, detail="Hero not found")
+        session.delete(hero)
+        session.commit()
+        return {"ok": True}