}
                            },
                        },
                    },
                    "summary": "Get Path Param Lt",
                    "operationId": "get_path_param_lt_path_param_lt__item_id__get",
                    "parameters": [
                        {
                            "required": True,
                            "schema": {

                </mxCell>
                <mxCell id="42" value="&lt;font face=&quot;Roboto&quot; data-font-src=&quot;https://fonts.googleapis.com/css?family=Roboto&quot;&gt;&lt;span style=&quot;font-size: 24px&quot;&gt;IP:&lt;/span&gt;&lt;br&gt;&lt;span style=&quot;font-size: 24px&quot;&gt;123.124.125.126&lt;/span&gt;&lt;br&gt;&lt;/font&gt;" style="rounded=0;whiteSpace=wrap;html=1;strokeColor=#000000;strokeWidth=3;" parent="1" vertex="1">

                    <mxGeometry relative="1" as="geometry"/>
                </mxCell>

                </mxCell>
                <mxCell id="42" value="&lt;font face=&quot;Roboto&quot; data-font-src=&quot;https://fonts.googleapis.com/css?family=Roboto&quot;&gt;&lt;span style=&quot;font-size: 24px&quot;&gt;IP:&lt;/span&gt;&lt;br&gt;&lt;span style=&quot;font-size: 24px&quot;&gt;123.124.125.126&lt;/span&gt;&lt;br&gt;&lt;/font&gt;" style="rounded=0;whiteSpace=wrap;html=1;strokeColor=#000000;strokeWidth=3;" parent="1" vertex="1">

@app.get("/path/param-lt/{item_id}")
def get_path_param_lt(item_id: float = Path(lt=3)):
    return item_id


@app.get("/path/param-lt0/{item_id}")
def get_path_param_lt0(item_id: float = Path(lt=0)):
    return item_id


@app.get("/path/param-le/{item_id}")
def get_path_param_le(item_id: float = Path(le=3)):
    return item_id


@app.get("/path/param-lt-gt/{item_id}")

            default=default,
            default_factory=default_factory,
            alias=alias,
            title=title,
            description=description,
            gt=gt,
            ge=ge,
            lt=lt,
            le=le,
            min_length=min_length,
            max_length=max_length,
            discriminator=discriminator,
            multiple_of=multiple_of,
            allow_nan=allow_inf_nan,

                </mxCell>

        validation_alias=validation_alias,
        serialization_alias=serialization_alias,
        title=title,
        description=description,
        gt=gt,
        ge=ge,
        lt=lt,
        le=le,
        min_length=min_length,
        max_length=max_length,
        pattern=pattern,
        regex=regex,
        discriminator=discriminator,
        strict=strict,

app = FastAPI()


@app.get("/items/{item_id}")
async def read_items(
    *,
    item_id: int = Path(title="The ID of the item to get", ge=0, le=1000),
    q: str,
    size: float = Query(gt=0, lt=10.5),
):
    results = {"item_id": item_id}
    if q:
        results.update({"q": q})

`0.5` wäre also ein gültiger Wert, aber nicht `0.0` oder `0`.

Das gleiche gilt für <abbr title="less than – kleiner als"><code>lt</code></abbr>.

=== "Python 3.9+"

    ```Python hl_lines="13"
    {!> ../../../docs_src/path_params_numeric_validations/tutorial006_an_py39.py!}
    ```

=== "Python 3.8+"