What are some pros and cons of a scope keyword?

In something like C++ you could create a scope like so:

 cpp

    
{
    // Do something neat here
}


  

I was wondering about having or maybe even requiring a scope keyword, which might look like this:

 cpp

    
scope
{
    // Do something neat here
}


  

This seems even more relevant in an indentation sensitive language like python:

 py

    
scope:
    pass

  

Interested to hear any opinions, TIA.