I was fiddling with one line if and for statements in python and ran across the following problem:
I can make something like the following work:
state = 1 if state == 4 else 2
But I want to use = and += in the same context, something like this:
state = 1 if state == 4 else state+=1
How can I implement this in one line?
+= is not an operator, it is a statement. You cannot use statements in an expression.
Since state is an integer, just use +, which is an operator:
state = 1 if state == 4 else state + 1
The end result is exactly the same as having used an += in-place addition.
Better still, use the % modulus operator:
state = (state % 4) + 1
which achieves what you wanted to achieve in the first place; limit state to a value between 1 and 4.