appropriateness of using or redistributing the Work and assume any
      risks associated with Your exercise of permissions under this License.

   8. Limitation of Liability. In no event and under no legal theory,
      whether in tort (including negligence), contract, or otherwise,
      unless required by applicable law (such as deliberate and grossly
      negligent acts) or agreed to in writing, shall any Contributor be

```mermaid
flowchart LR
    stone(philosophers-stone) -->|requires| harry-1[harry v1]
```

Então, em algum momento depois, você cria outro projeto chamado `prisoner-of-azkaban`, e esse projeto também depende de `harry`, mas esse projeto precisa do **`harry` versão `3`**.

```mermaid
flowchart LR

```mermaid
flowchart LR
    stone(philosophers-stone) -->|requires| harry-1[harry v1]
```

Luego, en algún momento después, creas otro proyecto llamado `prisoner-of-azkaban`, y este proyecto también depende de `harry`, pero este proyecto necesita **`harry` versión `3`**.

```mermaid
flowchart LR

      appropriateness of using or redistributing the Work and assume any
      risks associated with Your exercise of permissions under this License.

   8. Limitation of Liability. In no event and under no legal theory,
      whether in tort (including negligence), contract, or otherwise,
      unless required by applicable law (such as deliberate and grossly
      negligent acts) or agreed to in writing, shall any Contributor be

================================================================

github.com/pkg/browser
https://github.com/pkg/browser
----------------------------------------------------------------
Copyright (c) 2014, Dave Cheney <dave@cheney.net>
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

例如，你可能會建立一個名為 `philosophers-stone` 的專案，這個程式依賴於另一個名為 **`harry` 的套件，並使用版本 `1`**。因此，你需要安裝 `harry`。

```mermaid
flowchart LR
    stone(philosophers-stone) -->|需要| harry-1[harry v1]
```

然而，在此之後，你又建立了另一個名為 `prisoner-of-azkaban` 的專案，而這個專案也依賴於 `harry`，但需要的是 **`harry` 版本 `3`**。

```mermaid
flowchart LR
    azkaban(prisoner-of-azkaban) --> |需要| harry-3[harry v3]
```

例如，你可能会创建一个名为 `philosophers-stone` 的工程，这个程序依赖于另一个名为 **`harry` 的软件包，使用版本 `1`**。因此，你需要安装 `harry`。

```mermaid
flowchart LR
    stone(philosophers-stone) -->|需要| harry-1[harry v1]
```

然而在此之后，你又创建了另一个名为 `prisoner-of-azkaban` 的工程，这个工程也依赖于 `harry`，但是这个工程需要 **`harry` 版本 `3`**。

```mermaid
flowchart LR
    azkaban(prisoner-of-azkaban) --> |需要| harry-3[harry v3]
```

```

하지만 이제 문제가 생깁니다. 로컬 가상 환경 대신에 전역 환경에 패키지를 설치하게 되면, 어떤 버전의 `harry`를 설치할지를 선택해야 하기 때문입니다.

예를 들어, `마법사의 돌(philosophers-stone)`을 실행하고 싶다면 먼저 `harry` `v1` 버전을 다음과 같이 설치 해야 합니다:

<div class="termy">

```console
$ pip install "harry==1"
```

</div>

그러면 결국 전역 Python 환경에는 `harry` `v1`버전이 설치된 상태가 됩니다.

```mermaid
flowchart LR
    subgraph global[global env]

Например, вы можете создать проект `philosophers-stone`, который зависит от пакета **`harry` версии `1`**. Значит, нужно установить `harry`.

```mermaid
flowchart LR
    stone(philosophers-stone) -->|requires| harry-1[harry v1]
```

Затем вы создаёте другой проект `prisoner-of-azkaban`, который тоже зависит от `harry`, но ему нужен **`harry` версии `3`**.

```mermaid
flowchart LR

      appropriateness of using or redistributing the Work and assume any
      risks associated with Your exercise of permissions under this License.

   8. Limitation of Liability. In no event and under no legal theory,
      whether in tort (including negligence), contract, or otherwise,
      unless required by applicable law (such as deliberate and grossly
      negligent acts) or agreed to in writing, shall any Contributor be