[MOHAMMED WASIM KHAN (wasim-builds)]

Summary

Fixes #26274
Also resolves the underlying issue reported upstream in microsoft/vscode#346333.

When "Run Python File" or "Run Python File in Dedicated Terminal" executes via the Python Environments extension API (extapi.runInTerminal or extapi.runInDedicatedTerminal), PythonTerminalExecutionOptions.args expects raw arguments and handles necessary shell quoting internally.

Previously, executeUsingExtension in src/client/terminals/codeExecution/codeExecutionManager.ts appended fileToExecute.fsPath.fileToCommandArgumentForPythonExt() to totalArgs. For script paths containing spaces (e.g. /path with spaces/main.py), fileToCommandArgumentForPythonExt() wrapped the path in literal quotes ("..."). When passed to runInTerminal, the terminal received literal quotes as part of the path, causing Python to fail with [Errno 2] No such file or directory or [Errno 22] Invalid argument: '"/path with spaces/main.py"'.

Changes

1. In src/client/terminals/codeExecution/codeExecutionManager.ts:
   • Pass raw fileToExecute.fsPath in totalArgs instead of wrapping with fileToCommandArgumentForPythonExt(), letting the terminal execution API handle argument quoting.
2. In src/test/terminals/codeExecution/codeExecutionManager.unit.test.ts:
   • Added unit test Ensure executeUsingExtension does not pass extra quotes in path with spaces.
   • Added unit test Ensure executeUsingExtension does not pass extra quotes in path with spaces for dedicated terminal.

Verification

• npx tsc -p ./ passed with 0 errors.
• npx mocha -r out/test/unittests.js --ui tdd out/test/terminals/codeExecution/codeExecutionManager.unit.test.js passed all 12 tests.
• npx eslint src/client/terminals/codeExecution/codeExecutionManager.ts src/test/terminals/codeExecution/codeExecutionManager.unit.test.ts passed with 0 errors and 0 warnings.

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