But a dotenv file doesn't really have to have that exact filename.

///

Pydantic has support for reading from these types of files using an external library. You can read more at <a href="https://docs.pydantic.dev/latest/concepts/pydantic_settings/#dotenv-env-support" class="external-link" target="_blank">Pydantic Settings: Dotenv (.env) support</a>.

/// tip

For this to work, you need to `pip install python-dotenv`.

///

Server: nginx/1.4.6 (Ubuntu)
Content-Type: text/plain
Content-Length: 1759
Connection: keep-alive
```

The network requests also contain more data, such as the `Accept-Encoding: gzip` header added by OkHttp to advertise support for response compression. The network interceptor's `Chain` has a non-null `Connection` that can be used to interrogate the IP address and TLS configuration that were used to connect to the webserver.

    .build();
```

The TLS versions and cipher suites in each spec can change with each release. For example, in OkHttp 2.2 we dropped support for SSL 3.0 in response to the [POODLE](https://googleonlinesecurity.blogspot.ca/2014/10/this-poodle-bites-exploiting-ssl-30.html) attack. And in OkHttp 2.3 we dropped support for [RC4](https://en.wikipedia.org/wiki/RC4#Security). As with your desktop web browser, staying up-to-date with OkHttp is the best way to stay secure.

 * bound. However, it would also let them create `new TypeParameter<@Nullable T>() {}`, which
 * wouldn't behave as users might expect. Additionally, it's not clear how the TypeToken API could
 * support even a "normal" `TypeParameter<T>` when `<T>` has a nullable bound. (See the discussion
 * on TypeToken.where.) So, in the interest of failing fast and encouraging the user to switch to a

在這裡，你的編輯器可能會這樣幫助你：

* <a href="https://code.visualstudio.com/" class="external-link" target="_blank">Visual Studio Code</a> 中:

![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)

* <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a> 中:

![editor support](https://fastapi.tiangolo.com/img/pycharm-completion.png)

你將能進行程式碼補齊，這是在之前你可能曾認為不可能的事。例如，請求 JSON body（可能是巢狀的）中的鍵 `price`。

import okhttp3.internal.http.promisesBody
import okio.BufferedSource
import okio.GzipSource
import okio.Source
import okio.buffer

/**
 * Transparent Compressed response support.
 *
 * The algorithm map will be turned into a heading such as "Accept-Encoding: br, gzip"
 *
 * If [algorithms] is empty this interceptor has no effect. To disable compression set

      // Expected.
    }
    assertInvariants(map);
  }

  public void testEntrySetSetValue() {
    // TODO: Investigate the extent to which, in practice, maps that support
    // put() also support Entry.setValue().
    if (!supportsPut) {
      return;
    }

    Map<K, V> map;
    V valueToSet;
    try {
      map = makePopulatedMap();

    // No TLS extensions if the socket class is custom.
    if (matchesSocket(sslSocket)) {
      try {
        // Enable session tickets.
        setUseSessionTickets.invoke(sslSocket, true)

        // Assume platform support on 24+
        if (hostname != null && Build.VERSION.SDK_INT <= 23) {
          // This is SSLParameters.setServerNames() in API 24+.
          setHostname.invoke(sslSocket, hostname)
        }

        // Enable ALPN.

  SERIALIZABLE,
  SERIALIZABLE_INCLUDING_VIEWS(SERIALIZABLE),

  SUBSET_VIEW,
  DESCENDING_VIEW,

  /**
   * For documenting collections that support no optional features, such as {@link
   * java.util.Collections#emptySet}
   */
  NONE;

  private final Set<Feature<? super Collection>> implied;

  CollectionFeature(Feature<? super Collection>... implied) {

   * know that calling {@code clone()} during deserialization will return an
   * object that no one else has a reference to, allowing us to guarantee
   * immutability. Hence, we support only {@link EnumSet}.
   */
  private final transient EnumSet<E> delegate;

  private ImmutableEnumSet(EnumSet<E> delegate) {
    this.delegate = delegate;
  }

  @Override
  boolean isPartialView() {