improve logging

run-python3.js

@@ -18,12 +18,6 @@ async function runPython3(scriptName, debug = "") {
 }
 
 runPython3(...process.argv.slice(2)).catch(err => {
-  const error = err.toString();
-
-  // Python script errors are already written out via stderr so don't
-  // write them twice.  Write out all other errors to stderr.
-  if (!error.startsWith("Error: Command failed")) {
-    console.error(error);
-  }
+  console.error(err.toString());
   process.exit(1);
 });

venvtools.py

@@ -62,13 +62,13 @@ def python_run(venv_context, module, command=None, *, additional_dir=".", error_
             venv_context.env_exe,
             "-m", module
         ] + (command if command else [])
-        print("Executing: {}".format(" ".join(cmd_line)), file=sys.stderr)
+        print("Executing: {}".format(" ".join(cmd_line)))
         subprocess.run(
             cmd_line,
             cwd=_ROOT_DIR / additional_dir,
             check=True,
         )
     except subprocess.CalledProcessError as err:
-        print(err, file=sys.stderr)
+        print(err)
         if not error_ok:
             sys.exit(1)