Nó cũng sẽ **tải xuống** các tệp cho các gói khác mà FastAPI phụ thuộc vào.

Sau đó, nó sẽ **giải nén** tất cả các tệp đó và đưa chúng vào một thư mục trong máy tính của bạn.

Mặc định, nó sẽ đưa các tệp đã tải xuống và giải nén vào thư mục được cài đặt cùng Python của bạn, đó là **môi trường toàn cục**.

## Những Môi trường ảo là gì?

        /**
         * Stops the crawling operation gracefully.
         * If a data store is currently active, this method calls
         * its stop method to halt the crawling process.
         */
        public void stopCrawling() {
            if (dataStore != null) {
                dataStore.stop();
            }
        }

        /**
         * Gets the crawling information ID for this thread.
         *

 *
 * <p>{@code RuntimeException}s thrown by tasks are simply logged and the executor keeps trucking.
 * If an {@code Error} is thrown, the error will propagate and execution will stop until it is
 * restarted by a call to {@link #execute}.
 */
@J2ktIncompatible
@GwtIncompatible
final class SequentialExecutor implements Executor {

  public TestThread(L lockLikeObject, String threadName) {
    super(threadName);
    this.lockLikeObject = checkNotNull(lockLikeObject);
    start();
  }

  // Thread.stop() is okay because all threads started by a test are dying at the end of the test,
  // so there is no object state put at risk by stopping the threads abruptly. In some cases a test

Let's check back those deployment concepts from before:

* Security - HTTPS
* Running on startup
* Restarts
* **Replication (the number of processes running)**
* Memory
* Previous steps before starting

Up to this point, with all the tutorials in the docs, you have probably been running a **server program**, for example, using the `fastapi` command, that runs Uvicorn, running a **single process**.

            job.launchNow();
        }).orElse(() -> {
            throw new JobNotFoundException(this);
        });
    }

    public void stop() {
        ComponentUtil.getJobManager().findJobByUniqueOf(LaJobUnique.of(getId())).ifPresent(job -> {
            job.stopNow();
        }).orElse(() -> {
            throw new JobNotFoundException(this);
        });

                onDependencyCancel = FailureAction.FAIL_TO_START
            }
        }

        if (******@****.***sk != null) {
            steps {
                buildStep(
                    ******@****.***arameters,
                    ******@****.***rName,

- Learn:
  - learn/index.md
  - python-types.md
  - async.md
  - environment-variables.md
  - virtual-environments.md
  - Tutorial - User Guide:
    - tutorial/index.md
    - tutorial/first-steps.md
    - tutorial/path-params.md
    - tutorial/query-params.md
    - tutorial/body.md
    - tutorial/query-params-str-validations.md
    - tutorial/path-params-numeric-validations.md

FastAPI supports dependencies that do some <abbr title='sometimes also called "exit code", "cleanup code", "teardown code", "closing code", "context manager exit code", etc.'>extra steps after finishing</abbr>.

To do this, use `yield` instead of `return`, and write the extra steps (code) after.

/// tip

Make sure to use `yield` one single time per dependency.

///

/// note | Technical Details

Any function that is valid to use with:

    permissions:
      # Needed to upload the results to code-scanning dashboard.
      security-events: write
      # Needed to publish results and get a badge (see publish_results below).
      id-token: write

    steps:
      - name: "Checkout code"
        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          persist-credentials: false

      - name: "Run analysis"