Verify each finding against the current code and only fix it if needed.
Inline comments:
In `@extra_tests/snippets/stdlib_io.py`:
- Line 2: Remove the unused imports BytesIO and StringIO from the import
statement in stdlib_io.py; edit the line that currently imports BufferedReader,
BytesIO, FileIO, RawIOBase, StringIO, TextIOWrapper and delete BytesIO and
StringIO so only actually used symbols (e.g., BufferedReader, FileIO, RawIOBase,
TextIOWrapper) remain, resolving the F401 lint warnings.
- Around line 63-86: The test fails early with AttributeError because Gh6588
lacks a flush method, so TextIOWrapper.writelines() raises instead of exercising
the reentrant reconfigure-path; update the Gh6588 class to implement a
flush(self) method (e.g., forward to self.textio.flush() or a no-op) so
TextIOWrapper (created as textio via TextIOWrapper(raw, ...)) can call flush and
the test will exercise the reentrant call in write/reconfigure rather than
short-circuiting on missing flush.