134 lines
2.6 KiB
Markdown
134 lines
2.6 KiB
Markdown
# Python嵌入式分发方案（备选）
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## 方案概述
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如果PyInstaller sidecar方案遇到问题，可以考虑直接将Python嵌入式版本打包到应用中。
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## 实现步骤
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### 1. 下载Python嵌入式版本
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```bash
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# Windows
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wget https://www.python.org/ftp/python/3.11.0/python-3.11.0-embed-amd64.zip
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# 解压到 src-tauri/python-embed/
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```
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### 2. 安装依赖到嵌入式Python
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```python
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# scripts/setup_embedded_python.py
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import subprocess
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import sys
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from pathlib import Path
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def setup_embedded_python():
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embed_dir = Path("src-tauri/python-embed")
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python_exe = embed_dir / "python.exe"
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# 安装pip
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subprocess.run([
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str(python_exe), "-m", "ensurepip", "--default-pip"
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])
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# 安装依赖
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subprocess.run([
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str(python_exe), "-m", "pip", "install",
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"requests", "Pillow", "opencv-python-headless"
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])
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# 复制python_core模块
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import shutil
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shutil.copytree("python_core", embed_dir / "python_core")
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if __name__ == "__main__":
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setup_embedded_python()
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```
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### 3. 修改Tauri配置
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```json
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{
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"bundle": {
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"resources": [
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"python-embed/**"
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]
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}
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}
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```
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### 4. 修改Rust执行器
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```rust
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fn get_embedded_python_path() -> Option<PathBuf> {
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let exe_dir = std::env::current_exe().ok()?
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.parent()?;
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let python_exe = if cfg!(target_os = "windows") {
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exe_dir.join("python-embed/python.exe")
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} else {
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exe_dir.join("python-embed/bin/python3")
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};
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if python_exe.exists() {
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Some(python_exe)
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} else {
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None
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}
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}
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async fn execute_with_embedded_python(
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module: &str,
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action: &str,
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params: Option<&str>,
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) -> Result<String, String> {
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let python_exe = get_embedded_python_path()
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.ok_or("Embedded Python not found")?;
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let mut cmd = Command::new(python_exe);
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cmd.args(&[
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"-m", &format!("python_core.{}", module),
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"--action", action
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]);
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if let Some(p) = params {
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cmd.args(&["--params", p]);
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}
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// 执行命令...
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}
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```
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## 优缺点对比
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### PyInstaller Sidecar方案
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**优点**：
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- 单文件分发
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- 启动速度快
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- 内存占用相对较小
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**缺点**：
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- 构建复杂
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- 调试困难
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- 可能遇到兼容性问题
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### 嵌入式Python方案
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**优点**：
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- 构建简单
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- 调试容易
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- 兼容性好
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**缺点**：
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- 分发包较大
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- 启动速度较慢
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- 安全性较低
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## 推荐方案
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1. **首选**：PyInstaller Sidecar方案
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2. **备选**：嵌入式Python方案
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3. **开发**：系统Python方案
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根据项目需求和技术栈选择最适合的方案。
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