some os.system changes:

Author: glaukiol1

os/os.module.go

@@ -180,7 +180,7 @@ func system(self py.Object, args py.Tuple) (py.Object, error) {
 	if !ok {
 		return nil, py.ExceptionNewf(py.TypeError, "str expected (pos 1), not"+args[0].Type().Name)
 	}
-	carg := strings.ReplaceAll(string(_carg), "'", "")
+	carg := strings.ReplaceAll(string(_carg), "'", "\"")
 
 	var command *exec.Cmd
 	if runtime.GOOS != "windows" {

os/os.test.py

@@ -181,6 +181,14 @@ def _fail(test_name):
     _fail('os.system("pwd")')
     failed+=1
 
+print(bcolors.ENDC)
+
+if os.system("echo \"test passed\"") == 0:
+    _pass('os.system("echo \"test passed\"")')
+    passed_tests+=1
+else:
+    _fail('os.system("echo \"test passed\"")')
+    failed+=1
 
 print()
 print(bcolors.ENDC+bcolors.BOLD+bcolors.HEADER+"----- Results -----")