////

/// tip

Mỗi khi bạn cài đặt thêm một **package mới** trong môi trường đó, hãy **kích hoạt** môi trường đó lại.

Điều này đảm bảo rằng khi bạn sử dụng một **chương trình dòng lệnh (<abbr title="command line interface">CLI</abbr>)** được cài đặt từ gói đó, bạn sẽ dùng bản cài đặt từ môi trường ảo của mình thay vì bản được cài đặt toàn cục khác có thể có phiên bản khác với phiên bản bạn cần.

///

to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>

    This program is free software: you can redistribute it and/or modify

        SMB1SigningDigest verifyDigest = new SMB1SigningDigest(testMacSigningKey);

        // Verify should return false when signature is correct (no error)
        // The code returns true on line 281 when signatures DON'T match
        boolean result = verifyDigest.verify(data, 0, data.length, 0, mockRequest);

        // The verification should succeed (return false) since we're using the same key

// FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
// DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
//
// THIS SOFTWARE IS NOT DESIGNED OR INTENDED FOR USE OR RESALE AS ON-LINE
// CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING FAIL-SAFE
// PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, AIRCRAFT
// NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT LIFE

Then we **assign those two values** of the tuple to the variables `id` and `name`.

So, if the user didn't provide an item ID, they will still receive a random suggestion.

...we do all this in a **single simple line**. 🤯 Don't you love Python? 🐍

{* ../../docs_src/query_params_str_validations/tutorial015_an_py310.py ln[22:30] hl[29] *}

## Recap { #recap }

---

## **Typer**, FastAPI CLI

<a href="https://typer.tiangolo.com" target="_blank"><img src="https://typer.tiangolo.com/img/logo-margin/logo-margin-vector.svg" style="width: 20%;"></a>

Створюючи <abbr title="Command Line Interface">CLI</abbr> застосунок для використання в терміналі, замість веб-API зверніть увагу на <a href="https://typer.tiangolo.com/" class="external-link" target="_blank">**Typer**</a>.

```sh
$ mc tree --files ~/.minio
/home/user1/.minio
└─ certs
   ├─ CAs
   ├─ private.key
   └─ public.crt
```

You can provide a custom certs directory using `--certs-dir` command line option.

#### Credentials

On MinIO admin credentials or root credentials are only allowed to be changed using ENVs namely `MINIO_ROOT_USER` and `MINIO_ROOT_PASSWORD`.

```sh
export MINIO_ROOT_USER=minio

errors.failed_to_reindex=Failed to start re-indexing from {0} to {1}.
errors.failed_to_read_request_file=Failed to read a request file: {0}
errors.invalid_header_for_request_file=Invalid header line: {0}
errors.could_not_delete_logged_in_user=You cannot delete a user who is logged in.
errors.unauthorized_request=Unauthorized request.
errors.failed_to_print_thread_dump=Failed to print a thread dump.

errors.failed_to_reindex=Failed to start re-indexing from {0} to {1}.
errors.failed_to_read_request_file=Failed to read a request file: {0}
errors.invalid_header_for_request_file=Invalid header line: {0}
errors.could_not_delete_logged_in_user=You cannot delete a user who is logged in.
errors.unauthorized_request=Unauthorized request.
errors.failed_to_print_thread_dump=Failed to print a thread dump.

```

/// tip | Consejo

Hay varios archivos `__init__.py`: uno en cada directorio o subdirectorio.

Esto es lo que permite importar código de un archivo a otro.

Por ejemplo, en `app/main.py` podrías tener una línea como:

```
from app.routers import items
```

///