feat(sandbox): add Python 3 code execution sandbox support

sandbox/app/services/python_service.py

@@ -0,0 +1,80 @@
+"""Python execution service"""
+import signal
+
+from app.core.runners.python.python_runner import PythonRunner
+from app.dependencies import (
+    list_dependencies as list_deps,
+    update_dependencies as update_deps
+)
+from app.logger import get_logger
+from app.models import (
+    success_response,
+    error_response,
+    RunCodeResponse,
+    ListDependenciesResponse,
+    UpdateDependenciesResponse,
+    Dependency,
+    RunnerOptions
+)
+
+
+async def run_python_code(code: str, preload: str, options: RunnerOptions):
+    """Execute Python code in sandbox
+    
+    Args:
+        options:
+        code: Base64 encoded encrypted code
+        preload: Preload code
+
+    Returns:
+        API response with execution result
+    """
+    logger = get_logger()
+    
+    try:
+        runner = PythonRunner()
+        result = await runner.run(code, options, preload)
+        if result.exit_code == -signal.SIGSYS:
+            return error_response(31, "sandbox security policy violation")
+
+        if result.error:
+            return error_response(-500, result.error)
+        
+        return success_response(RunCodeResponse(
+            stdout=result.stdout,
+            stderr=result.stderr
+        ))
+        
+    except Exception as e:
+        logger.error(f"Python execution failed: {e}", exc_info=True)
+        return error_response(-500, str(e))
+
+
+async def list_python_dependencies():
+    """List installed Python dependencies
+    
+    Returns:
+        API response with dependency list
+    """
+    try:
+        deps = await list_deps("python")
+        dependencies = [
+            Dependency(name=dep["name"], version=dep["version"])
+            for dep in deps
+        ]
+        return success_response(ListDependenciesResponse(dependencies=dependencies))
+    except Exception as e:
+        return error_response(500, str(e))
+
+
+async def update_python_dependencies():
+    """Update Python dependencies
+    
+    Returns:
+        API response with update result
+    """
+    try:
+        await update_deps()
+        return success_response(UpdateDependenciesResponse(success=True))
+    except Exception as e:
+        return error_response(500, str(e))