```Python
from .routers import items, users
```

The second version is an "absolute import":

```Python
from app.routers import items, users
```

To learn more about Python Packages and Modules, read <a href="https://docs.python.org/3/tutorial/modules.html" class="external-link" target="_blank">the official Python documentation about Modules</a>.

///

    } catch (Throwable t) {
      /*
       * This is not one of AppEngine's allowed classes, so even in Sun JDKs, this can fail with
       * a NoClassDefFoundError. Other apps might deny access to sun.misc packages.
       */
      return null;
    }
  }

  /**
   * Returns the Method that can be used to resolve an individual StackTraceElement, or null if that

    --hash=sha256:fe3b385d996ee0822fd46528d9f0443b880d4d05528fd26a9119a54ec3f91c69
    # via -r ci/official/requirements_updater/requirements.in

# The following packages are considered to be unsafe in a requirements file:
setuptools==78.1.1 \
    --hash=sha256:c3a9c4211ff4c309edb8b8c4f1cbfa7ae324c4ba9f91ff254e3d305b9fd54561 \

    --hash=sha256:fe3b385d996ee0822fd46528d9f0443b880d4d05528fd26a9119a54ec3f91c69
    # via -r ci/official/requirements_updater/requirements.in

# The following packages are considered to be unsafe in a requirements file:
setuptools==78.1.1 \
    --hash=sha256:c3a9c4211ff4c309edb8b8c4f1cbfa7ae324c4ba9f91ff254e3d305b9fd54561 \

    --hash=sha256:fe3b385d996ee0822fd46528d9f0443b880d4d05528fd26a9119a54ec3f91c69
    # via -r ci/official/requirements_updater/requirements.in

# The following packages are considered to be unsafe in a requirements file:
setuptools==78.1.1 \
    --hash=sha256:c3a9c4211ff4c309edb8b8c4f1cbfa7ae324c4ba9f91ff254e3d305b9fd54561 \

### Breaking Changes

*   Build, Compilation and Packaging

    <project.build.outputTimestamp>2025-01-02T00:00:00Z</project.build.outputTimestamp>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <!--
    Some tests need reflective access to the internals of these packages. It is only the
    tests themselves and not the code being tested that needs that access, though there's no
    obvious way to ensure that.

    <project.build.outputTimestamp>2025-01-02T00:00:00Z</project.build.outputTimestamp>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <!--
    Some tests need reflective access to the internals of these packages. It is only the
    tests themselves and not the code being tested that needs that access, though there's no
    obvious way to ensure that.

### Install requirements

After activating the environment, install the required packages:

//// tab | `pip`

<div class="termy">

```console
$ pip install -r requirements.txt

---> 100%
```

</div>

////

//// tab | `uv`

    --hash=sha256:fe3b385d996ee0822fd46528d9f0443b880d4d05528fd26a9119a54ec3f91c69
    # via -r ci/official/requirements_updater/requirements.in

# The following packages are considered to be unsafe in a requirements file:
setuptools==78.1.1 \
    --hash=sha256:c3a9c4211ff4c309edb8b8c4f1cbfa7ae324c4ba9f91ff254e3d305b9fd54561 \