Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then install it, for example:

```console
$ pip install python-multipart
```

///

## Import `File` and `Form`

//// tab | Python 3.9+

```Python hl_lines="3"

                break;
        }
        ((ch.qos.logback.classic.Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME)).setLevel(value);
    }

    @Override
    public void activate() {
        // no op
    }

     */
    @Deprecated
    public UnsupportedSlf4jBindingConfiguration(String slf4jBinding, Map<URL, Set<Object>> supported) {}

    public UnsupportedSlf4jBindingConfiguration() {}

    @Override
    public void activate() {}

            default:
                value = "error";
                break;
        }
        System.setProperty("org.slf4j.simpleLogger.defaultLogLevel", value);
    }

    @Override
    public void activate() {
        ILoggerFactory lf = LoggerFactory.getILoggerFactory();
        if (lf instanceof MavenLoggerFactory mlf) {
            mlf.reconfigure();
        }
    }

* `/items/private/`
* `/users/{user_id}/activate`
* `/items/pro/`

开发人员可以使用依赖项及其子依赖项为这些路径操作添加不同的权限：

```mermaid
graph TB

current_user(["current_user"])
active_user(["active_user"])
admin_user(["admin_user"])
paying_user(["paying_user"])

public["/items/public/"]
private["/items/private/"]
activate_user["/users/{user_id}/activate"]
pro_items["/items/pro/"]

            boolean reverseName = false;

            if (name == null) {
                throw new ProfileActivationException(
                        "The property name is required to activate the profile '" + profile.getId() + "'");
            }

            if (name.startsWith("!")) {
                reverseName = true;
                name = name.substring(1);
            }

* `/items/private/`
* `/users/{user_id}/activate`
* `/items/pro/`

⤴️ 👆 💪 🚮 🎏 ✔ 📄 🔠 👫 ⏮️ 🔗 & 🎧-🔗:

```mermaid
graph TB

current_user(["current_user"])
active_user(["active_user"])
admin_user(["admin_user"])
paying_user(["paying_user"])

public["/items/public/"]
private["/items/private/"]
activate_user["/users/{user_id}/activate"]
pro_items["/items/pro/"]

        // do nothing
    }

    /**
     * Invoked after MavenSession instance has been created.
     *
     * This callback is intended to allow extensions to inject execution properties,
     * activate profiles and perform similar tasks that affect MavenProject
     * instance construction.
     *
     * @param session the Maven session
     * @throws MavenExecutionException in case of issue
     */

     */
    String PROPERTY_NAME_PACKAGING = "packaging";

    /**
     * Gets the identifiers of those profiles that should be activated by explicit demand.
     *
     * @return The identifiers of those profiles to activate, never {@code null}.
     */
    List<String> getActiveProfileIds();

    /**
     * Gets the identifiers of those profiles that should be deactivated by explicit demand.
     *

        }

        if (name == null || name.isEmpty()) {
            problems.add(new ModelProblemCollectorRequest(Severity.ERROR, Version.BASE)
                    .setMessage("The property name is required to activate the profile " + profile.getId())
                    .setLocation(property.getLocation("")));
            return false;
        }

        String sysValue = context.getUserProperties().get(name);