# Classes as Dependencies

Before diving deeper into the **Dependency Injection** system, let's upgrade the previous example.

## A `dict` from the previous example

In the previous example, we were returning a `dict` from our dependency ("dependable"):

=== "Python 3.10+"

    ```Python hl_lines="9"
    {!> ../../../docs_src/dependencies/tutorial001_an_py310.py!}
    ```

=== "Python 3.9+"

    ```Python hl_lines="11"

Aleksandr Andrukhov <******@****.***> 1705057939 +0300

## Klassen als Abhängigkeiten

Möglicherweise stellen Sie fest, dass Sie zum Erstellen einer Instanz einer Python-Klasse die gleiche Syntax verwenden.

Zum Beispiel:

```Python
class Cat:
    def __init__(self, name: str):
        self.name = name


fluffy = Cat(name="Mr Fluffy")
```

In diesem Fall ist `fluffy` eine Instanz der Klasse `Cat`.

Kani Kim <******@****.***> 1707659311 +0900

SwftAlpc <******@****.***> 1705334896 +0900

Sebastián Ramírez <******@****.***> 1697522351 +0400

            doLast {
                def classes = configurations.compile.outgoing.variants['classes']
                classes.attributes.attribute(format, 'classes2')
            }
        }
        task mutateAfterResolve {
            doLast {
                configurations.compile.resolve()
                def classes = configurations.compile.outgoing.variants['classes']
                classes.attributes.attribute(format, 'classes-dir')

    </orderEntry>
    <orderEntry type="module-library">
      <library>
        <CLASSES>
          <root url="jar://$MODULE_DIR$/lib/compile-1.0.jar!/"/>
        </CLASSES>
        <JAVADOC/>
        <SOURCES/>
      </library>
    </orderEntry>
    <orderEntry type="module-library" scope="RUNTIME">
      <library>
        <CLASSES>

        def classes = findClasses()
        assertThat(classes.keySet(), hasItem(testClass))
        def classFile = classes.get(testClass)
        assertThat(classFile, notNullValue())
        return new XmlSlurper().parse(classFile)
    }

    private def findTestClassStartsWith(String testClass) {
        def classes = findClasses()
        assertThat(classes.keySet(), hasItem(startsWith(testClass)))

    <property name="classes.dir" location="\${build.dir}/classes"/>
    <property name="test.classes.dir" location="\${build.dir}/test-classes"/>
    <property name="test.reports.dir" location="\${build.dir}/test-reports"/>

    <target name="clean">
        <delete dir="\${build.dir}"/>
    </target>

    <target name="compile">
        <mkdir dir="\${classes.dir}"/>