If you have only one statement to execute, you can put it on the same line as the if statement.
One line if statement:
if a > b: print("a is greater than b")
If you have only one statement to execute, one for if, and one for else, you can put it all on the same line:
One line if else statement:
a = 2
b = 330
print("A") if a > b else print("B")
You can also have multiple else statements on the same line:
One line if else statement, with 3 conditions:
a = 330
b = 330
print("A") if a > b else print("=") if a == b else print("B")