Python io.UnsupportedOperation() Examples
The following are 30
code examples of io.UnsupportedOperation().
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and go to the original project or source file by following the links above each example.
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Example #1
| Source File: arm_chromeos.py From script.module.inputstreamhelper with MIT License | 6 votes |
|
def seek_stream(self, seek_pos):
"""Move position of bstream to seek_pos"""
try:
self.bstream[0].seek(seek_pos)
self.bstream[1] = seek_pos
return
except UnsupportedOperation:
chunksize = 4 * 1024**2
if seek_pos >= self.bstream[1]:
while seek_pos - self.bstream[1] > chunksize:
self.read_stream(chunksize)
self.read_stream(seek_pos - self.bstream[1])
return
self.bstream[0].close()
self.bstream[1] = 0
self.bstream = self.get_bstream(self.imgpath)
while seek_pos - self.bstream[1] > chunksize:
self.read_stream(chunksize)
self.read_stream(seek_pos - self.bstream[1])
return
Example #2
| Source File: utils.py From jawfish with MIT License | 6 votes |
|
def super_len(o):
if hasattr(o, '__len__'):
return len(o)
if hasattr(o, 'len'):
return o.len
if hasattr(o, 'fileno'):
try:
fileno = o.fileno()
except io.UnsupportedOperation:
pass
else:
return os.fstat(fileno).st_size
if hasattr(o, 'getvalue'):
# e.g. BytesIO, cStringIO.StringIO
return len(o.getvalue())
Example #3
| Source File: qtutils.py From qutebrowser with GNU General Public License v3.0 | 6 votes |
|
def seek(self, offset: int, whence: int = io.SEEK_SET) -> int:
self._check_open()
self._check_random()
if whence == io.SEEK_SET:
ok = self.dev.seek(offset)
elif whence == io.SEEK_CUR:
ok = self.dev.seek(self.tell() + offset)
elif whence == io.SEEK_END:
ok = self.dev.seek(len(self) + offset)
else:
raise io.UnsupportedOperation("whence = {} is not "
"supported!".format(whence))
if not ok:
raise QtOSError(self.dev, msg="seek failed!")
return self.dev.pos()
Example #4
| Source File: inirama.py From linter-pylama with MIT License | 6 votes |
|
def read(self, *files, **params):
""" Read and parse INI files.
:param *files: Files for reading
:param **params: Params for parsing
Set `update=False` for prevent values redefinition.
"""
for f in files:
try:
with io.open(f, encoding='utf-8') as ff:
NS_LOGGER.info('Read from `{0}`'.format(ff.name))
self.parse(ff.read(), **params)
except (IOError, TypeError, SyntaxError, io.UnsupportedOperation):
if not self.silent_read:
NS_LOGGER.error('Reading error `{0}`'.format(ff.name))
raise
Example #5
| Source File: utils.py From vulscan with MIT License | 6 votes |
|
def super_len(o):
if hasattr(o, '__len__'):
return len(o)
if hasattr(o, 'len'):
return o.len
if hasattr(o, 'fileno'):
try:
fileno = o.fileno()
except io.UnsupportedOperation:
pass
else:
return os.fstat(fileno).st_size
if hasattr(o, 'getvalue'):
# e.g. BytesIO, cStringIO.StringIO
return len(o.getvalue())
Example #6
| Source File: base.py From GTDWeb with GNU General Public License v2.0 | 6 votes |
|
def chunks(self, chunk_size=None):
"""
Read the file and yield chunks of ``chunk_size`` bytes (defaults to
``UploadedFile.DEFAULT_CHUNK_SIZE``).
"""
if not chunk_size:
chunk_size = self.DEFAULT_CHUNK_SIZE
try:
self.seek(0)
except (AttributeError, UnsupportedOperation):
pass
while True:
data = self.read(chunk_size)
if not data:
break
yield data
Example #7
| Source File: utils.py From pledgeservice with Apache License 2.0 | 6 votes |
|
def super_len(o):
if hasattr(o, '__len__'):
return len(o)
if hasattr(o, 'len'):
return o.len
if hasattr(o, 'fileno'):
try:
fileno = o.fileno()
except io.UnsupportedOperation:
pass
else:
return os.fstat(fileno).st_size
if hasattr(o, 'getvalue'):
# e.g. BytesIO, cStringIO.StringIO
return len(o.getvalue())
Example #8
| Source File: utils.py From pledgeservice with Apache License 2.0 | 6 votes |
|
def super_len(o):
if hasattr(o, '__len__'):
return len(o)
if hasattr(o, 'len'):
return o.len
if hasattr(o, 'fileno'):
try:
fileno = o.fileno()
except io.UnsupportedOperation:
pass
else:
return os.fstat(fileno).st_size
if hasattr(o, 'getvalue'):
# e.g. BytesIO, cStringIO.StringIO
return len(o.getvalue())
Example #9
| Source File: utils.py From faces with GNU General Public License v2.0 | 6 votes |
|
def super_len(o):
if hasattr(o, '__len__'):
return len(o)
if hasattr(o, 'len'):
return o.len
if hasattr(o, 'fileno'):
try:
fileno = o.fileno()
except io.UnsupportedOperation:
pass
else:
return os.fstat(fileno).st_size
if hasattr(o, 'getvalue'):
# e.g. BytesIO, cStringIO.StringIO
return len(o.getvalue())
Example #10
| Source File: utils.py From faces with GNU General Public License v2.0 | 6 votes |
|
def super_len(o):
if hasattr(o, '__len__'):
return len(o)
if hasattr(o, 'len'):
return o.len
if hasattr(o, 'fileno'):
try:
fileno = o.fileno()
except io.UnsupportedOperation:
pass
else:
return os.fstat(fileno).st_size
if hasattr(o, 'getvalue'):
# e.g. BytesIO, cStringIO.StringIO
return len(o.getvalue())
Example #11
| Source File: stream_output_stream.py From clikit with MIT License | 5 votes |
|
def write(self, string): # type: (str) -> None
"""
Writes a string to the stream.
"""
if self.is_closed():
raise io.UnsupportedOperation("Cannot write to a closed input.")
self._stream.write(string)
self._stream.flush()
Example #12
| Source File: stream_output_stream.py From clikit with MIT License | 5 votes |
|
def flush(self): # type: () -> None
"""
Flushes the stream and forces all pending text to be written out.
"""
if self.is_closed():
raise io.UnsupportedOperation("Cannot write to a closed input.")
self._stream.flush()
Example #13
| Source File: stream_input_stream.py From clikit with MIT License | 5 votes |
|
def read(self, length): # type: (int) -> str
"""
Reads the given amount of characters from the stream.
"""
if self.is_closed():
raise io.UnsupportedOperation("Cannot read from a closed input.")
try:
data = self._stream.read(length)
except EOFError:
return ""
if data:
return data
return ""
Example #14
| Source File: stream_input_stream.py From clikit with MIT License | 5 votes |
|
def read_line(self, length=None): # type: (Optional[int]) -> str
"""
Reads a line from the stream.
"""
if self.is_closed():
raise io.UnsupportedOperation("Cannot read from a closed input.")
try:
return self._stream.readline(length) or ""
except EOFError:
return ""
Example #15
| Source File: _io.py From jawfish with MIT License | 5 votes |
|
def __new__(cls, *args, **kwargs):
return open(*args, **kwargs)
# In normal operation, both `UnsupportedOperation`s should be bound to the
# same object.
Example #16
| Source File: _io.py From jawfish with MIT License | 5 votes |
|
def _unsupported(self, name):
"""Internal: raise an IOError exception for unsupported operations."""
raise UnsupportedOperation("%s.%s() not supported" %
(self.__class__.__name__, name))
### Positioning ###
Example #17
| Source File: _io.py From jawfish with MIT License | 5 votes |
|
def seekable(self):
"""Return a bool indicating whether object supports random access.
If False, seek(), tell() and truncate() will raise UnsupportedOperation.
This method may need to do a test seek().
"""
return False
Example #18
| Source File: _io.py From jawfish with MIT License | 5 votes |
|
def readable(self):
"""Return a bool indicating whether object was opened for reading.
If False, read() will raise UnsupportedOperation.
"""
return False
Example #19
| Source File: _io.py From jawfish with MIT License | 5 votes |
|
def _checkReadable(self, msg=None):
"""Internal: raise UnsupportedOperation if file is not readable
"""
if not self.readable():
raise UnsupportedOperation("File or stream is not readable."
if msg is None else msg)
Example #20
| Source File: _io.py From jawfish with MIT License | 5 votes |
|
def writable(self):
"""Return a bool indicating whether object was opened for writing.
If False, write() and truncate() will raise UnsupportedOperation.
"""
return False
Example #21
| Source File: _io.py From jawfish with MIT License | 5 votes |
|
def _checkWritable(self, msg=None):
"""Internal: raise UnsupportedOperation if file is not writable
"""
if not self.writable():
raise UnsupportedOperation("File or stream is not writable."
if msg is None else msg)
Example #22
| Source File: test_qtutils.py From qutebrowser with GNU General Public License v3.0 | 5 votes |
|
def test_fileno(self, pyqiodev):
with pytest.raises(io.UnsupportedOperation):
pyqiodev.fileno()
Example #23
| Source File: test_qtutils.py From qutebrowser with GNU General Public License v3.0 | 5 votes |
|
def test_seek_unsupported(self, pyqiodev):
"""Test seeking with unsupported whence arguments."""
# pylint: disable=no-member,useless-suppression
if hasattr(os, 'SEEK_HOLE'):
whence = os.SEEK_HOLE
elif hasattr(os, 'SEEK_DATA'):
whence = os.SEEK_DATA
# pylint: enable=no-member,useless-suppression
else:
pytest.skip("Needs os.SEEK_HOLE or os.SEEK_DATA available.")
pyqiodev.open(QIODevice.ReadOnly)
with pytest.raises(io.UnsupportedOperation):
pyqiodev.seek(0, whence)
Example #24
| Source File: test_qtutils.py From qutebrowser with GNU General Public License v3.0 | 5 votes |
|
def test_truncate(self, pyqiodev):
with pytest.raises(io.UnsupportedOperation):
pyqiodev.truncate()
Example #25
| Source File: utils.py From plugin.video.emby with GNU General Public License v3.0 | 5 votes |
|
def super_len(o):
total_length = 0
current_position = 0
if hasattr(o, '__len__'):
total_length = len(o)
elif hasattr(o, 'len'):
total_length = o.len
elif hasattr(o, 'getvalue'):
# e.g. BytesIO, cStringIO.StringIO
total_length = len(o.getvalue())
elif hasattr(o, 'fileno'):
try:
fileno = o.fileno()
except io.UnsupportedOperation:
pass
else:
total_length = os.fstat(fileno).st_size
# Having used fstat to determine the file length, we need to
# confirm that this file was opened up in binary mode.
if 'b' not in o.mode:
warnings.warn((
"Requests has determined the content-length for this "
"request using the binary size of the file: however, the "
"file has been opened in text mode (i.e. without the 'b' "
"flag in the mode). This may lead to an incorrect "
"content-length. In Requests 3.0, support will be removed "
"for files in text mode."),
FileModeWarning
)
if hasattr(o, 'tell'):
current_position = o.tell()
return max(0, total_length - current_position)
Example #26
| Source File: utils.py From jbox with MIT License | 5 votes |
|
def super_len(o):
total_length = 0
current_position = 0
if hasattr(o, '__len__'):
total_length = len(o)
elif hasattr(o, 'len'):
total_length = o.len
elif hasattr(o, 'getvalue'):
# e.g. BytesIO, cStringIO.StringIO
total_length = len(o.getvalue())
elif hasattr(o, 'fileno'):
try:
fileno = o.fileno()
except io.UnsupportedOperation:
pass
else:
total_length = os.fstat(fileno).st_size
# Having used fstat to determine the file length, we need to
# confirm that this file was opened up in binary mode.
if 'b' not in o.mode:
warnings.warn((
"Requests has determined the content-length for this "
"request using the binary size of the file: however, the "
"file has been opened in text mode (i.e. without the 'b' "
"flag in the mode). This may lead to an incorrect "
"content-length. In Requests 3.0, support will be removed "
"for files in text mode."),
FileModeWarning
)
if hasattr(o, 'tell'):
current_position = o.tell()
return max(0, total_length - current_position)
Example #27
| Source File: util.py From jbox with MIT License | 5 votes |
|
def has_fileno(obj):
if not hasattr(obj, "fileno"):
return False
# check BytesIO case and maybe others
try:
obj.fileno()
except (AttributeError, IOError, io.UnsupportedOperation):
return False
return True
Example #28
| Source File: base.py From omniduct with MIT License | 5 votes |
|
def read(self, size=-1):
if not self.readable:
raise io.UnsupportedOperation("File not open for reading.")
return self.__io_buffer.read(size)
Example #29
| Source File: base.py From omniduct with MIT License | 5 votes |
|
def readline(self, size=-1):
if not self.readable:
raise io.UnsupportedOperation("File not open for reading.")
return self.__io_buffer.readline(size)
Example #30
| Source File: base.py From omniduct with MIT License | 5 votes |
|
def readlines(self, hint=-1):
if not self.readable:
raise io.UnsupportedOperation("File not open for reading.")
return self.__io_buffer.readlines(hint)
