例如，你可以在数据库中让一个 Django 应用和一个 FastAPI 应用共享同一份数据。或者在使用同一个数据库的前提下，逐步迁移一个 Django 应用到 FastAPI。

同时，你的用户既可以从 Django 应用登录，也可以从 **FastAPI** 应用登录。

///

## 哈希并校验密码 { #hash-and-verify-the-passwords }

从 `pwdlib` 导入所需工具。

用推荐设置创建一个 PasswordHash 实例——它将用于哈希与校验密码。

/// tip | 提示

pwdlib 也支持 bcrypt 哈希算法，但不包含遗留算法——如果需要处理过时的哈希，建议使用 passlib 库。

    }
  }

  /*
   * TODO(cpovirk): surely we can find a less ugly solution than a class that accepts 3 parameters,
   * exposes as many getters, does work in the constructor, and has both a superclass and a subclass
   */
  public static class SortedMapSubmapTestMapGenerator<
          K extends @Nullable Object, V extends @Nullable Object>

					t.Fatalf("Should find saved record")
				}

				return errors.New("inner rollback")
			}); err == nil {
				t.Fatalf("nested transaction has no error")
			}

			return errors.New("rollback")
		}); err == nil {
			t.Fatalf("nested transaction should returns error")
		}

		if err := tx.First(&User{}, "name = ?", user1.Name).Error; err == nil {

	// MINIO_KMS_SECRET_KEY_FILE is set to a path that does not exist,
	// the server does not complain and start without a KMS config.
	//
	// Until the container image changes, this behavior has to be preserved.
	if isPresent(EnvKMSSecretKey) && os.Getenv(EnvKMSSecretKey) == "" {
		os.Unsetenv(EnvKMSSecretKey)
	}
	if isPresent(EnvKMSSecretKeyFile) {
		if filename := os.Getenv(EnvKMSSecretKeyFile); filename == "" {

import org.jspecify.annotations.NonNull;
import org.jspecify.annotations.Nullable;

/**
 * This class contains static utility methods that operate on or return objects of type {@link
 * Iterator}. Except as noted, each method has a corresponding {@link Iterable}-based method in the
 * {@link Iterables} class.
 *
 * <p><i>Performance notes:</i> Unless otherwise noted, all of the iterators produced in this class

import org.jspecify.annotations.NonNull;
import org.jspecify.annotations.Nullable;

/**
 * This class contains static utility methods that operate on or return objects of type {@link
 * Iterator}. Except as noted, each method has a corresponding {@link Iterable}-based method in the
 * {@link Iterables} class.
 *
 * <p><i>Performance notes:</i> Unless otherwise noted, all of the iterators produced in this class

   ============================================ */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    scroll-behavior: smooth;
    min-height: 200px;
}

.chat-messages:not(:has(.chat-message)) .empty-state {
    display: flex;
}

.chat-messages:has(.chat-message) .empty-state {
    display: none;
}

/* ============================================
   Message styles

     * {@link #previousElements} if the reverse is true, or -- overriding both of these -- {@code
     * null} if {@code remove()} or {@code add()} has been called more recently than either. We use
     * this to determine which stack to pop from on a call to {@code remove()} (or to pop from and
     * push to on a call to {@code set()}).
     */

      expected.put(alternatingKeysAndValues[i], alternatingKeysAndValues[i + 1]);
    }
    assertThat(map).containsExactlyEntriesIn(expected).inOrder();
  }

  /** No-op test so that the class has at least one method, making Maven's test runner happy. */
  public void testNoop() {}

      fail();
    } catch (IllegalArgumentException success) {
    } finally {
      joinPool(e);
    }
  }

  /** invokeAny(c) throws NPE if c has null elements */
  public void testInvokeAnyImpl_nullElement() throws Exception {
    ListeningExecutorService e = newDirectExecutorService();
    List<Callable<Integer>> l = new ArrayList<>();
    l.add(
        () -> {