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fix(python): improve Python detection and pip command reliability

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- Add shared python-utils.ts module for consistent Python detection
- Use `python -m pip` instead of direct pip command (fixes "pip not found")
- Support CCW_PYTHON env var for custom Python path
- Use Windows py launcher to find compatible versions (3.9-3.12)
- Warn users when Python version may not be compatible with onnxruntime

Fixes issues where users couldn't install ccw-litellm due to:
- pip not in PATH
- Only pip3 available (not pip)
- Python 3.13+ without onnxruntime support

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
catlog22
2025-12-30 15:23:44 +08:00
parent f6cc3736b2
commit 754cddd4ad
3 changed files with 133 additions and 22 deletions
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13
ccw/src/core/routes/litellm-api-routes.ts
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@@ -6,6 +6,7 @@
import type { IncomingMessage, ServerResponse } from 'http';
import { fileURLToPath } from 'url';
import { dirname, join as pathJoin } from 'path';
import { getSystemPython } from '../../utils/python-utils.js';
// Get current module path for package-relative lookups
const __filename = fileURLToPath(import.meta.url);
@@ -834,10 +835,13 @@ export async function handleLiteLLMApiRoutes(ctx: RouteContext): Promise<boolean
}
}
// Use shared Python detection for consistent cross-platform behavior
const pythonCmd = getSystemPython();
if (!packagePath) {
// Try pip install from PyPI as fallback
return new Promise((resolve) => {
const proc = spawn('pip', ['install', 'ccw-litellm'], { shell: true, timeout: 300000 });
const proc = spawn(pythonCmd, ['-m', 'pip', 'install', 'ccw-litellm'], { shell: true, timeout: 300000 });
let output = '';
let error = '';
proc.stdout?.on('data', (data) => { output += data.toString(); });
@@ -857,7 +861,7 @@ export async function handleLiteLLMApiRoutes(ctx: RouteContext): Promise<boolean
// Install from local package
return new Promise((resolve) => {
const proc = spawn('pip', ['install', '-e', packagePath], { shell: true, timeout: 300000 });
const proc = spawn(pythonCmd, ['-m', 'pip', 'install', '-e', packagePath], { shell: true, timeout: 300000 });
let output = '';
let error = '';
proc.stdout?.on('data', (data) => { output += data.toString(); });
@@ -892,8 +896,11 @@ export async function handleLiteLLMApiRoutes(ctx: RouteContext): Promise<boolean
try {
const { spawn } = await import('child_process');
// Use shared Python detection for consistent cross-platform behavior
const pythonCmd = getSystemPython();
return new Promise((resolve) => {
const proc = spawn('pip', ['uninstall', '-y', 'ccw-litellm'], { shell: true, timeout: 120000 });
const proc = spawn(pythonCmd, ['-m', 'pip', 'uninstall', '-y', 'ccw-litellm'], { shell: true, timeout: 120000 });
let output = '';
let error = '';
proc.stdout?.on('data', (data) => { output += data.toString(); });