def savefile_open(
filename: str,
binary: bool = False,
encoding: str = 'utf-8'
) -> typing.Iterator[typing.IO]:
"""Context manager to easily use a QSaveFile."""
f = QSaveFile(filename)
cancelled = False
try:
open_ok = f.open(QIODevice.WriteOnly)
if not open_ok:
raise QtOSError(f)
dev = typing.cast(typing.BinaryIO, PyQIODevice(f))
if binary:
new_f = dev # type: typing.IO
else:
new_f = io.TextIOWrapper(dev, encoding=encoding)
yield new_f
new_f.flush()
except:
f.cancelWriting()
cancelled = True
raise
finally:
commit_ok = f.commit()
if not commit_ok and not cancelled:
raise QtOSError(f, msg="Commit failed!")
def savefile_open(filename, binary=False, encoding='utf-8'):
"""Context manager to easily use a QSaveFile."""
f = QSaveFile(filename)
cancelled = False
try:
open_ok = f.open(QIODevice.WriteOnly)
if not open_ok:
raise QtOSError(f)
if binary:
new_f = PyQIODevice(f)
else:
new_f = io.TextIOWrapper(PyQIODevice(f), encoding=encoding)
yield new_f
new_f.flush()
except:
f.cancelWriting()
cancelled = True
raise
finally:
commit_ok = f.commit()
if not commit_ok and not cancelled:
raise QtOSError(f, msg="Commit failed!")
def savefile_open(filename, binary=False, encoding='utf-8'):
"""Context manager to easily use a QSaveFile."""
f = QSaveFile(filename)
cancelled = False
try:
open_ok = f.open(QIODevice.WriteOnly)
if not open_ok:
raise QtOSError(f)
if binary:
new_f = PyQIODevice(f)
else:
new_f = io.TextIOWrapper(PyQIODevice(f), encoding=encoding)
yield new_f
new_f.flush()
except:
f.cancelWriting()
cancelled = True
raise
finally:
commit_ok = f.commit()
if not commit_ok and not cancelled:
raise QtOSError(f, msg="Commit failed!")
def savefile_open(
filename: str,
binary: bool = False,
encoding: str = 'utf-8'
) -> Iterator[IO[AnyStr]]:
"""Context manager to easily use a QSaveFile."""
f = QSaveFile(filename)
cancelled = False
try:
open_ok = f.open(QIODevice.WriteOnly)
if not open_ok:
raise QtOSError(f)
dev = cast(BinaryIO, PyQIODevice(f))
if binary:
new_f: IO[Any] = dev # FIXME:mypy Why doesn't AnyStr work?
else:
new_f = io.TextIOWrapper(dev, encoding=encoding)
yield new_f
new_f.flush()
except:
f.cancelWriting()
cancelled = True
raise
finally:
commit_ok = f.commit()
if not commit_ok and not cancelled:
raise QtOSError(f, msg="Commit failed!")
def savefile_open(filename, binary=False, encoding='utf-8'):
"""Context manager to easily use a QSaveFile."""
f = QSaveFile(filename)
new_f = None
try:
ok = f.open(QIODevice.WriteOnly)
if not ok: # pylint: disable=used-before-assignment
raise OSError(f.errorString())
if binary:
new_f = PyQIODevice(f)
else:
new_f = io.TextIOWrapper(PyQIODevice(f), encoding=encoding)
yield new_f
except:
f.cancelWriting()
raise
finally:
if new_f is not None:
new_f.flush()
ok = f.commit()
if not ok:
raise OSError(f.errorString())
def savefile_open(filename, binary=False, encoding='utf-8'):
"""Context manager to easily use a QSaveFile."""
f = QSaveFile(filename)
new_f = None
try:
ok = f.open(QIODevice.WriteOnly)
if not ok:
raise OSError(f.errorString())
if binary:
new_f = PyQIODevice(f)
else:
new_f = io.TextIOWrapper(PyQIODevice(f), encoding=encoding)
yield new_f
except:
f.cancelWriting()
raise
finally:
if new_f is not None:
new_f.flush()
commit_ok = f.commit()
if not commit_ok:
raise OSError(f.errorString())
