///

A ativação de um ambiente virtual adiciona seu caminho `.venv/bin` (no Linux e macOS) ou `.venv\Scripts` (no Windows) à variável de ambiente `PATH`.

Digamos que antes de ativar o ambiente, a variável `PATH` estava assim:

//// tab | Linux, macOS

```plaintext
/usr/bin:/bin:/usr/sbin:/sbin
```

Isso significa que o sistema procuraria programas em:

**macOS**                     | [![Status](https://storage.googleapis.com/tensorflow-kokoro-build-badges/macos-py2-cc.svg)](https://storage.googleapis.com/tensorflow-kokoro-build-badges/macos-py2-cc.html)     | [PyPI](https://pypi.org/project/tf-nightly/)

///

Kích hoạt môi trường ảo thêm đường dẫn `.venv/bin` (trên Linux và macOS) hoặc `.venv\Scripts` (trên Windows) vào biến `PATH`.

Giả sử rằng trước khi kích hoạt môi trường, biến `PATH` như sau:

//// tab | Linux, macOS

```plaintext
/usr/bin:/bin:/usr/sbin:/sbin
```

Nghĩa là hệ thống sẽ tìm kiếm chương trình trong:

* `/usr/bin`

環境変数は**テキスト文字列**のみを扱うことができます。これは、環境変数がPython外部に存在し、他のプログラムやシステム全体（Linux、Windows、macOS間の互換性を含む）と連携する必要があるためです。

つまり、Pythonが環境変数から読み取る**あらゆる値**は **`str`型となり**、他の型への変換やバリデーションはコード内で行う必要があります。

環境変数を使用して**アプリケーション設定**を管理する方法については、[高度なユーザーガイド - Settings and Environment Variables](./advanced/settings.md){.internal-link target=_blank}で詳しく学べます。

## `PATH`環境変数

**`PATH`**という**特別な**環境変数があります。この環境変数は、OS（Linux、macOS、Windows）が実行するプログラムを発見するために使用されます。

  postgres:
    strategy:
      matrix:
        dbversion: ['postgres:latest', 'postgres:15', 'postgres:14', 'postgres:13']
        go: ['1.23', '1.24']
        platform: [ubuntu-latest] # can not run in macOS and Windows
    runs-on: ${{ matrix.platform }}

    services:
      postgres:
        image: ${{ matrix.dbversion }}
        env:
          POSTGRES_PASSWORD: gorm
          POSTGRES_USER: gorm

object AdHocPerformanceScenarioWindows : AdHocPerformanceScenario(Os.WINDOWS)

object AdHocPerformanceScenarioMacOS : AdHocPerformanceScenario(Os.MACOS, Arch.AMD64)

#ifndef TENSORFLOW_C_C_API_MACROS_INTERNAL_H_
#define TENSORFLOW_C_C_API_MACROS_INTERNAL_H_

#ifdef __cplusplus
#include "tensorflow/core/platform/status.h"

// Macro to verify that the field `struct_size` of STRUCT_OBJ is initialized.
// `struct_size` is used for struct member compatibility check between core TF
// and plug-ins with the same C API minor version. More info here:

# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
#
# macOS specific setup for all TF scripts.
#

# Mac version of Core utilities differ in usage. Since our scripts are written
# with the GNU style, we need to set GNU utilities to be default on Mac.

site
.coverage*
coverage.xml
.netlify
test.db
log.txt
Pipfile.lock
env3.*
env
docs_build
site_build
venv
docs.zip
archive.zip

# vim temporary files
*~
.*.sw?
.cache

# macOS

    mapOf(
        StageName.PULL_REQUEST_FEEDBACK to listOf(Os.LINUX, Os.WINDOWS),
        StageName.READY_FOR_NIGHTLY to listOf(Os.LINUX, Os.WINDOWS, Os.MACOS),
        StageName.READY_FOR_RELEASE to listOf(Os.LINUX, Os.WINDOWS, Os.MACOS),
    )

class StageTriggers(
    model: CIBuildModel,
    stage: Stage,
    prevStage: Stage?,
    stageProject: StageProject,
) {