Handle regular files properly in ls

bin/ls.py

@@ -4,15 +4,19 @@ def get_app_class(template):
     class App(template):
         def F_main(self):
             if len(self.argv) == 1:
-                directory = "."
+                path = "."
             else:
-                directory = self.argv[1]
+                path = self.argv[1]
 
             try:
-                for file in os.listdir(directory):
+                for file in os.listdir(path):
                     print(file)
             except OSError as e:
-                print(str(e))
+                try:
+                    os.stat(path)
+                    print(path)
+                except OSError:
+                    print(f"ls: cannot access '{path}': No such file or directory")
 
             self.exit()