How to create an 'empty if statement' in python

Question

It\'s very common in C: hacking \'empty if statement\' like this:

if(mostlyhappencondition)
    ;#empty statement
else{
    dosomething;
}

Answer 1

I can only guess you're looking for the pass statement, sometimes needed to create an empty code block to prevent a syntax error.

if mostlyhappencondition:
    pass
else:
    do_something()

It would be much more usual to just do this, which is logically equivalent:

if not mostlyhappencondition:
    do_something()

There are no significant performance gains to be found here.