In Python, it’s common to use exceptions for control flow. Even exiting a loop is done via an exception: `StopIteration`.
isn't break more normal
The point is that the use of exceptions is built into the language, so, for example, if you write "for something in somegeneratorfunction():" then somegeneratorfunction will signal to the for loop that it is finished by raising this exception.
I’d say it’s more common for iterator-based loops to run to completion than to hit a `break` statement. The `StopIteration` exception is how the iterator signals that completion.
That simple example in Python is missing all the other stuff you have to put around it. Go would have another error check, but I get to decide, at that point in the execution, how I want to handle it in this context