Update PyPI URLs to use pypi.org domain

Changed all references from files.pythonhosted.org to pypi.org in both the README and the PyPI platform configuration. This aligns documentation and configuration with the current official PyPI domain.

README.md

@@ -148,7 +148,7 @@
 | GitLab | `/gl/` | `https://gitlab.com/...` | `https://xget.xi-xu.me/gl/...` |
 | Hugging Face | `/hf/` | `https://huggingface.co/...` | `https://xget.xi-xu.me/hf/...` |
 | npm | `/npm/` | `https://registry.npmjs.org/...` | `https://xget.xi-xu.me/npm/...` |
-| PyPI | `/pypi/` | `https://files.pythonhosted.org/...` | `https://xget.xi-xu.me/pypi/...` |
+| PyPI | `/pypi/` | `https://pypi.org/...` | `https://xget.xi-xu.me/pypi/...` |
 | conda | `/conda/` | `https://repo.anaconda.com/...` 和 `https://conda.anaconda.org/...` | `https://xget.xi-xu.me/conda/...` 和 `https://xget.xi-xu.me/conda/community/...` |
 
 ### 各平台转换示例
@@ -209,13 +209,13 @@ https://xget.xi-xu.me/npm/lodash
 
 ```url
 # Python 包文件原始链接
-https://files.pythonhosted.org/packages/source/r/requests/requests-2.31.0.tar.gz
+https://pypi.org/packages/source/r/requests/requests-2.31.0.tar.gz
 
 # 转换后（添加 /pypi/ 前缀）
 https://xget.xi-xu.me/pypi/packages/source/r/requests/requests-2.31.0.tar.gz
 
 # Wheel 文件原始链接
-https://files.pythonhosted.org/packages/py3/r/requests/requests-2.31.0-py3-none-any.whl
+https://pypi.org/packages/py3/r/requests/requests-2.31.0-py3-none-any.whl
 
 # 转换后（添加 /pypi/ 前缀）
 https://xget.xi-xu.me/pypi/packages/py3/r/requests/requests-2.31.0-py3-none-any.whl
@@ -366,8 +366,6 @@ yarn install
 
 ### Python 包管理加速
 
-#### 直接下载 Python 包
-
 #### 配置 pip 使用 Xget 镜像
 
 ```bash

src/config/platforms.js

@@ -25,7 +25,7 @@ export const PLATFORMS = {
 	},
 	/** @type {{base: string, transform: function(string): string}} PyPI registry configuration */
 	pypi: {
-		base: "https://files.pythonhosted.org",
+		base: "https://pypi.org",
 		transform: (path) => path.replace(/^\/pypi\//, "/"),
 	},
 	/** @type {{base: string, transform: function(string): string}} conda default channels configuration */