Is there a "gap" between acquire and try in the acquire-try-finally idiom?

The prime motivation for finally clauses is to guarantee clean-up of resources like open files, locks, etc. For example, the Julia docs on finally clauses present the following example.

f = open("file")
    # operate on file f

In codes like this, there is some syntactic “gap” between returning from open() and entering the try block. This raises the question: does the language guarantee that no exception can be thrown in this gap? It’s clear that nothing “internal” can throw an exception (there simply isn’t anything which could do that), but what about e.g. interrupts?