for-if without list comprehension in one line

Question

can this be written in one line without List Comprehensions?

for x in vec: 
    if x > 3:
         ...
         ...

Answer 1

It can, but list comprehensions/generator expressions are the exact sort of thing that should be used here. Depending on what you want to do in your if block, you could use some form of map or reduce, but list comprehensions and generator expressions are likely the best way to do it.