import io
class MockRawIO:
def __init__(self):
self.closed = NotImplemented
def write(self, b):
return len(data)
def writable(self):
return True
tp = io.BufferedWriter
writer = MockRawIO()
bufio = tp(writer, 8)
bufio.close()SystemError: <method 'close' of '_io.BufferedWriter' objects> returned a result with an exception set
Bug report
Bug description:
CPython versions tested on:
CPython main branch
Operating systems tested on:
Linux
Linked PRs