////

//// tab | Python 3.8+

```Python hl_lines="30-35"
{!> ../../docs_src/body_updates/tutorial001.py!}
```

////

`PUT` is used to receive data that should replace the existing data.

### Warning about replacing

That means that if you want to update the item `bar` using `PUT` with a body containing:

```Python
{
    "name": "Barz",
    "price": 3,
    "description": None,
}
```

.table-info:hover {\n  background-color: #abdde5;\n}\n\n.table-hover .table-info:hover > td,\n.table-hover .table-info:hover > th {\n  background-color: #abdde5;\n}\n\n.table-warning,\n.table-warning > th,\n.table-warning > td {\n  background-color: #ffeeba;\n}\n\n.table-warning th,\n.table-warning td,\n.table-warning thead th,\n.table-warning tbody + tbody {\n  border-color: #ffdf7e;\n}\n\n.table-hover .table-warning:hover {\n  background-color: #ffe8a1;\n}\n\n.table-hover .table-warning:hover > td,\n.table-hover...

///

/// warning

👆 💪 📣 💗 `File` & `Form` 🔢 *➡ 🛠️*, ✋️ 👆 💪 🚫 📣 `Body` 🏑 👈 👆 ⌛ 📨 🎻, 📨 🔜 ✔️ 💪 🗜 ⚙️ `multipart/form-data` ↩️ `application/json`.

👉 🚫 🚫 **FastAPI**, ⚫️ 🍕 🇺🇸🔍 🛠️.

///

import static java.nio.file.Files.createFile;
import static java.nio.file.Files.createSymbolicLink;
import static java.nio.file.Files.createTempDirectory;
import static java.util.logging.Level.WARNING;

import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.io.Closer;
import com.google.common.io.Files;

.table-info:hover {\n  background-color: #abdde5;\n}\n\n.table-hover .table-info:hover > td,\n.table-hover .table-info:hover > th {\n  background-color: #abdde5;\n}\n\n.table-warning,\n.table-warning > th,\n.table-warning > td {\n  background-color: #ffeeba;\n}\n\n.table-warning th,\n.table-warning td,\n.table-warning thead th,\n.table-warning tbody + tbody {\n  border-color: #ffdf7e;\n}\n\n.table-hover .table-warning:hover {\n  background-color: #ffe8a1;\n}\n\n.table-hover .table-warning:hover > td,\n.table-hover...

from tensorflow.python.util.lazy_loader import KerasLazyLoader as _KerasLazyLoader

# API IMPORTS PLACEHOLDER

# WRAPPER_PLACEHOLDER

if "dev" in __version__:   # pylint: disable=undefined-variable
  _logging.warning("""

  TensorFlow's `tf-nightly` package will soon be updated to TensorFlow 2.0.

  Please upgrade your code to TensorFlow 2.0:
    * https://www.tensorflow.org/guide/migrate

 * should override one or more methods to modify the behavior of the backing multiset as desired per
 * the <a href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p><b>Warning:</b> The methods of {@code ForwardingSortedMultiset} forward
 * <b>indiscriminately</b> to the methods of the delegate. For example, overriding {@link

///

/// warning

enum ContextDevicePlacementPolicy {
  // Running operations with input tensors on the wrong device will fail.
  DEVICE_PLACEMENT_EXPLICIT = 0,
  // Copy the tensor to the right device but log a warning.
  DEVICE_PLACEMENT_WARN = 1,
  // Silently copy the tensor, which has a performance cost since the operation
  // will be blocked till the copy completes. This is the default policy.
  DEVICE_PLACEMENT_SILENT = 2,

It is equivalent to:

```Python
from main import app
```

///

Each alternative ASGI server program would have a similar command, you can read more in their respective documentation.

/// warning

Uvicorn and other servers support a `--reload` option that is useful during development.

The `--reload` option consumes much more resources, is more unstable, etc.