///

При активации виртуальной среды путь `.venv/bin` (для Linux и macOS) или `.venv\Scripts` (для Windows) добавляется в переменную окружения `PATH`.

Предположим, что до активации виртуальной среды переменная `PATH` выглядела так:

//// tab | Linux, macOS

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

Это означает, что система ищет программы в следующих каталогах:

      "coverage" : {
        "per_day" : [ "linux", "macOs", "windows" ]
      }
    } ]
  }, {
    "testId" : "org.gradle.performance.experiment.declarativedsl.DeclarativeDslFirstUsePerformanceTest.cold daemon",
    "groups" : [ {
      "testProject" : "largeEmptyMultiProjectDeclarativeDsl",
      "coverage" : {
        "per_day" : [ "linux", "macOs", "windows" ]
      }
    } ]
  }, {

**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/)

    "macOs" : 335
  }, {
    "testProject" : "santaTrackerAndroidBuild",
    "linux" : 680,
    "windows" : 941,
    "macOs" : 440
  } ]
}, {
  "scenario" : "org.gradle.performance.regression.android.AndroidIncrementalExecutionPerformanceTest.non-abi change with configuration caching",
  "durations" : [ {
    "testProject" : "nowInAndroidBuild",
    "linux" : 348,
    "windows" : 461,
    "macOs" : 314
  }, {

Значение переменной `PATH` - это длинная строка, состоящая из каталогов, разделенных двоеточием `:` в Linux и macOS, и точкой с запятой `;` в Windows.

Например, переменная окружения `PATH` может выглядеть следующим образом:

//// tab | Linux, macOS

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

            Os.WINDOWS,
            numberOfBuckets = 10,
            failsStage = false,
        ),
        PerformanceTestCoverage(
            7,
            PerformanceTestType.PER_COMMIT,
            Os.MACOS,
            Arch.AARCH64,
            numberOfBuckets = 5,
            failsStage = false,
        ),
    )

private val slowPerformanceTestCoverages =
    listOf(
        PerformanceTestCoverage(

Giá trị của biến môi trường `PATH` là một chuỗi dài được tạo bởi các thư mục được phân tách bởi dấu hai chấm `:` trên Linux và macOS, và bởi dấu chấm phẩy `;` trên Windows.

Ví dụ, biến môi trường `PATH` có thể có dạng như sau:

//// tab | Linux, macOS

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

///

Activating a virtual environment adds its path `.venv/bin` (on Linux and macOS) or `.venv\Scripts` (on Windows) to the `PATH` environment variable.

Let's say that before activating the environment, the `PATH` variable looked like this:

//// tab | Linux, macOS

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

That means that the system would look for programs in:

        param("env.GRADLE_INTERNAL_REPO_URL", "%gradle.internal.repository.url%")
        if (os == Os.MACOS && arch == Arch.AMD64) {
            // Use fewer parallel forks only on Intel macOS builds, since they are not very powerful.
            param("maxParallelForks", "2")
        }
        if (os == Os.LINUX || os == Os.MACOS) {
            param("env.LC_ALL", "en_US.UTF-8")
        }
    }
}

你可以在 [環境變數](environment-variables.md#path-environment-variable){.internal-link target=_blank} 部分了解更多關於 `PATH` 環境變數的內容。

///

啟用虛擬環境會將其路徑 `.venv/bin`（在 Linux 和 macOS 上）或 `.venv\Scripts`（在 Windows 上）加入到 `PATH` 環境變數中。

假設在啟用環境之前，`PATH` 變數看起來像這樣：

//// tab | Linux, macOS

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

這意味著系統會在以下目錄中查找程式：

* `/usr/bin`
* `/bin`
* `/usr/sbin`
* `/sbin`