;;

    # RedHat ####################################################
    1)
        # If $1=1 this is an install
        IS_UPGRADE=false
    ;;
    2)
        # If $1=1 this is an upgrade
        IS_UPGRADE=true
    ;;

    *)
        echo "post install script called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac

if [ "x$IS_UPGRADE" != "xtrue" ]; then

            plugins.add(newPlugin("maven-surefire-plugin", "test"));
            plugins.add(newPlugin("maven-jar-plugin", "jar"));
            plugins.add(newPlugin("maven-install-plugin", "install"));
            plugins.add(newPlugin("maven-deploy-plugin", "deploy"));
        } else {
            plugins = Collections.emptySet();
        }

        return plugins;
    }

{!> ../../docs_src/dependencies/tutorial008b.py!}
```

////

An alternative you could use to catch exceptions (and possibly also raise another `HTTPException`) is to create a [Custom Exception Handler](../handling-errors.md#install-custom-exception-handlers){.internal-link target=_blank}.

## Dependencies with `yield` and `except`

Во избежание ошибок в дальнейших шагах, удостоверьтесь, что в Вашем виртуальном окружении установлена последняя версия `pip`:

<div class="termy">

```console
$ python -m pip install --upgrade pip

---> 100%
```

</div>

/// tip | "Подсказка"

Каждый раз, перед установкой новой библиотеки в виртуальное окружение при помощи `pip`, не забудьте активировать это виртуальное окружение.

/// info

To receive uploaded files and/or form data, first install <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

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`

      new ImmutableClassToInstanceMap<>(ImmutableMap.<Class<?>, Object>of());

  /**
   * Returns an empty {@code ImmutableClassToInstanceMap}.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   *
   * @since 19.0
   */
  @SuppressWarnings("unchecked")
  public static <B> ImmutableClassToInstanceMap<B> of() {
    return (ImmutableClassToInstanceMap<B>) EMPTY;
  }

  /**

   * under {@code directExecutor}: Not only might the wait for a lock be long, but if the running
   * thread was holding a lock, the listener may deadlock or break lock isolation.
   *
   * <p>This instance is equivalent to:
   *
   * <pre>{@code
   * final class DirectExecutor implements Executor {
   *   public void execute(Runnable r) {
   *     r.run();
   *   }
   * }
   * }</pre>
   *

- [manifest](../operator/cmd/mesh/manifest.go): the manifest subcommand is used to generate, install, diff or migrate Istio manifests, it has the following subcommands:
    - [install](../operator/cmd/mesh/install.go): the install subcommand is used to generate an Istio install manifest and apply it to a cluster.

	}
	return nil
}

func installSimulator(appdir string) error {
	cmd := exec.Command(
		"xcrun", "simctl", "install",
		"booted", // Install to the booted simulator.
		appdir,
	)
	if out, err := cmd.CombinedOutput(); err != nil {
		os.Stderr.Write(out)
		return fmt.Errorf("xcrun simctl install booted %q: %v", appdir, err)
	}
	return nil
}

func runSimulator(appdir, bundleID string, args []string) error {

    return TableCollectors.toImmutableTable(
        rowFunction, columnFunction, valueFunction, mergeFunction);
  }

  /**
   * Returns an empty immutable table.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  @SuppressWarnings("unchecked")
  public static <R, C, V> ImmutableTable<R, C, V> of() {
    return (ImmutableTable<R, C, V>) SparseImmutableTable.EMPTY;
  }