Fix Windows cmd quoting for Python

src/python-runtime.ts

@@ -27,6 +27,9 @@ function splitCommand(command: string): string[] {
 }
 
 function quoteWindowsCmdArg(value: string): string {
+  if (!/[ \t"&()<>^|]/.test(value)) {
+    return value;
+  }
   return `"${value.replace(/"/g, '""')}"`;
 }