<div class="termy">

```console
$ C:\opt\custompython\bin\python
```

</div>

////

Эта информация будет полезна при изучении [Виртуальных окружений](virtual-environments.md){.internal-link target=_blank}.

## Вывод

Благодаря этому вы должны иметь базовое представление о том, что такое **переменные окружения** и как использовать их в Python.

অনেক ক্ষেত্রে, দেখা মাত্রই এনভায়রনমেন্ট ভেরিয়েবল কীভাবে প্রয়োজন হবে  তা স্পষ্ট হয় না। কিন্তু ডেভেলপমেন্টের সময় আপনি নানা রকম পরিস্থিতিতে এগুলোর সম্মুখীন হবেন, তাই এগুলো সম্পর্কে জেনে রাখা ভালো।

# Biến môi trường (Environment Variables)

/// tip

Nếu bạn đã biết về "biến môi trường" và cách sử dụng chúng, bạn có thể bỏ qua phần này.

///

Một biến môi trường (còn được gọi là "**env var**") là một biến mà tồn tại **bên ngoài** đoạn mã Python, ở trong **hệ điều hành**, và có thể được đọc bởi đoạn mã Python của bạn (hoặc bởi các chương trình khác).

تقریباً معادل اینه که تایپ کنی:

<div class="termy">

```console
$ C:\opt\custompython\bin\python
```

</div>

////

این اطلاعات وقتی در مورد [محیط‌های مجازی](virtual-environments.md){.internal-link target=_blank} یاد می‌گیری به‌دردت می‌خوره.

## نتیجه‌گیری

با این باید یه درک پایه‌ای از **متغیرهای محیطی** و نحوه استفاده‌شون توی پایتون داشته باشی.

When you work in Python projects you probably should use a **virtual environment** (or a similar mechanism) to isolate the packages you install for each project.

/// info

If you already know about virtual environments, how to create them and use them, you might want to skip this section. 🤓

///

/// tip

A **virtual environment** is different than an **environment variable**.

        return getPath(StringUtil.EMPTY, "js", names);
    }

    /**
     * Gets the path to environment-specific files directory.
     *
     * @param envName the environment name (e.g., "python", "ruby")
     * @param names the path components to append to the environment directory
     * @return the Path object pointing to the environment-specific directory
     */

		}
	}
	return m
}

func initConsoleServer() (*consoleapi.Server, error) {
	// unset all console_ environment variables.
	for _, cenv := range env.List(consolePrefix) {
		os.Unsetenv(cenv)
	}

	// enable all console environment variables
	minioConfigToConsoleFeatures()

	// set certs dir to minio directory
	consoleCerts.GlobalCertsDir = &consoleCerts.ConfigDir{

////


Эта команда создаст или изменит некоторые [переменные окружения](environment-variables.md){.internal-link target=_blank}, которые будут доступны для последующих команд.

Одной из таких переменных является `PATH`.

/// tip | Подсказка

Вы можете узнать больше о переменной окружения `PATH` в разделе [Переменные окружения](environment-variables.md#path-environment-variable){.internal-link target=_blank}.

///

To understand environment variables you can read [Environment Variables](../environment-variables.md){.internal-link target=_blank}.

///

## Types and validation { #types-and-validation }

These environment variables can only handle text strings, as they are external to Python and have to be compatible with other programs and the rest of the system (and even with different operating systems, as Linux, Windows, macOS).

            } catch (Exception e) {
                // Expected due to missing dependencies in test environment
                assertTrue(true);
                return;
            }

            assertEquals(0, functionBuilders.size());
        } catch (Exception e) {
            // Expected due to missing dependencies in test environment
            assertTrue(true);
        }
    }