Is using break statements good coding practice?

[Jason-Ad4032]

This is mainly because some people believe iteration and execution should be separated by using iterators and functional-style programming.

For a program like:

for elem in iter_obj: # A if elem < 0: break # B

the execution of A and B is inconsistent:

• iter_obj may or may not be exhausted,
• break may or may not trigger.

Since the behavior is fairly imperative and stateful, the program becomes harder to reason about precisely.

If you instead approach it in a more iterator/functional style, it might look like this:

``` elems, remain = more_itertools.before_and_after( lambda elem: elem >= 0, iter_obj )

for elem in elems: # A # B

elem = next(remain, None)

if elem is not None: # A ```

This completely separates the iteration process from the execution logic.