Python io.RawIOBase() Examples

def setUp(self):
        self.loop = self.new_test_loop()
        self.protocol = test_utils.make_test_protocol(asyncio.BaseProtocol)
        self.pipe = mock.Mock(spec_set=io.RawIOBase)
        self.pipe.fileno.return_value = 5

        blocking_patcher = mock.patch('asyncio.unix_events._set_nonblocking')
        blocking_patcher.start()
        self.addCleanup(blocking_patcher.stop)

        fstat_patcher = mock.patch('os.fstat')
        m_fstat = fstat_patcher.start()
        st = mock.Mock()
        st.st_mode = stat.S_IFSOCK
        m_fstat.return_value = st
        self.addCleanup(fstat_patcher.stop) 

def setUp(self):
        self.loop = self.new_test_loop()
        self.protocol = test_utils.make_test_protocol(asyncio.BaseProtocol)
        self.pipe = mock.Mock(spec_set=io.RawIOBase)
        self.pipe.fileno.return_value = 5

        blocking_patcher = mock.patch('asyncio.unix_events._set_nonblocking')
        blocking_patcher.start()
        self.addCleanup(blocking_patcher.stop)

        fstat_patcher = mock.patch('os.fstat')
        m_fstat = fstat_patcher.start()
        st = mock.Mock()
        st.st_mode = stat.S_IFSOCK
        m_fstat.return_value = st
        self.addCleanup(fstat_patcher.stop) 

def setUp(self):
        self.loop = self.new_test_loop()
        self.protocol = test_utils.make_test_protocol(asyncio.Protocol)
        self.pipe = mock.Mock(spec_set=io.RawIOBase)
        self.pipe.fileno.return_value = 5

        blocking_patcher = mock.patch('asyncio.unix_events._set_nonblocking')
        blocking_patcher.start()
        self.addCleanup(blocking_patcher.stop)

        fstat_patcher = mock.patch('os.fstat')
        m_fstat = fstat_patcher.start()
        st = mock.Mock()
        st.st_mode = stat.S_IFIFO
        m_fstat.return_value = st
        self.addCleanup(fstat_patcher.stop) 

def compute(self, stream_in: RawIOBase, stream_out: RawIOBase = None):
        """Compute and return the hash for the given stream.

        The data is read from stream_in until EOF, given to the hasher, and
        written unmodified to the stream_out (unless it is None).

        :param stream_in: input stream.
        :type stream_in: io.RawIOBase

        :param stream_out: output stream.
        :type stream_out: io.RawIOBase
        """
        self._init_hashers()
        read_bytes = self.chunk_size
        while read_bytes == self.chunk_size:
            data = stream_in.read(self.chunk_size)
            read_bytes = len(data)
            for hasher in self._hashers.values():
                hasher.update(data)
            if stream_out is not None:
                stream_out.write(data) 

def _gen_file(self, filename, file_location=None, file=None, content_type=None):
		"""Yields the entire contents of a file.

		Parameters
		----------
		filename : str
			Filename of the file being opened and added to the HTTP body
		file_location : str
			Full path to the file being added, including the filename
		file : io.RawIOBase
			The binary file-like object whose contents should be streamed

			No contents will be streamed if this is ``None``.
		content_type : str
			The Content-Type of the file; if not set a value will be guessed
		"""
		yield from self._gen_file_start(filename, file_location, content_type)
		if file:
			yield from self._gen_file_chunks(file)
		yield from self._gen_file_end() 

def setUp(self):
        self.loop = self.new_test_loop()
        self.protocol = test_utils.make_test_protocol(asyncio.Protocol)
        self.pipe = mock.Mock(spec_set=io.RawIOBase)
        self.pipe.fileno.return_value = 5

        blocking_patcher = mock.patch('asyncio.unix_events._set_nonblocking')
        blocking_patcher.start()
        self.addCleanup(blocking_patcher.stop)

        fstat_patcher = mock.patch('os.fstat')
        m_fstat = fstat_patcher.start()
        st = mock.Mock()
        st.st_mode = stat.S_IFIFO
        m_fstat.return_value = st
        self.addCleanup(fstat_patcher.stop) 

def chunked_hash(stream: Union[io.RawIOBase, io.BufferedIOBase], chunk_size: int = DEFAULT_MD5_CHUNK_SIZE) -> List[bytes]:
    """Create a list of hashes of chunk_size size in bytes.

    Args:
          stream (Union[io.RawIOBase, io.BufferedIOBase]): The steam containing the bytes to be hashed.
          chunk_size (int): The md5 chunk size. Default is 10485760 (which is required for InstallApplication).

    Returns:
          List[str]: A list of md5 hashes calculated for each chunk
    """
    chunk = stream.read(chunk_size)
    hashes = []

    while chunk is not None:
        h = hashlib.md5()
        h.update(chunk)
        md5 = h.digest()
        hashes.append(md5)
        chunk = stream.read(chunk_size)

    return hashes 

def __init__(self, sock, mode):
        if mode not in ("r", "w", "rw", "rb", "wb", "rwb"):
            raise ValueError("invalid mode: %r" % mode)
        io.RawIOBase.__init__(self)
        self._sock = sock
        if "b" not in mode:
            mode += "b"
        self._mode = mode
        self._reading = "r" in mode
        self._writing = "w" in mode
        self._timeout_occurred = False 

def test_io_unbuffered_works(self):
        p = subprocess.Popen([sys.executable, "-c", "import sys; sys.exit(0)"],
                             stdin=subprocess.PIPE, stdout=subprocess.PIPE,
                             stderr=subprocess.PIPE, bufsize=0)
        try:
            self.assertIsInstance(p.stdin, io.RawIOBase)
            self.assertIsInstance(p.stdout, io.RawIOBase)
            self.assertIsInstance(p.stderr, io.RawIOBase)
        finally:
            p.stdin.close()
            p.stdout.close()
            p.stderr.close()
            p.wait() 

def test_open_common(self):
        p = self.cls(BASE)
        with (p / 'fileA').open('r') as f:
            self.assertIsInstance(f, io.TextIOBase)
            self.assertEqual(f.read(), "this is file A\n")
        with (p / 'fileA').open('rb') as f:
            self.assertIsInstance(f, io.BufferedIOBase)
            self.assertEqual(f.read().strip(), b"this is file A")
        with (p / 'fileA').open('rb', buffering=0) as f:
            self.assertIsInstance(f, io.RawIOBase)
            self.assertEqual(f.read().strip(), b"this is file A") 

def close(self):
        """Close the SocketIO object.  This doesn't close the underlying
        socket, except if all references to it have disappeared.
        """
        if self.closed:
            return
        io.RawIOBase.close(self)
        self._sock._decref_socketios()
        self._sock = None 

def close(self):
        """Close the SocketIO object.  This doesn't close the underlying
        socket, except if all references to it have disappeared.
        """
        if self.closed:
            return
        io.RawIOBase.close(self)
        self._sock._decref_socketios()
        self._sock = None 

def __init__(self, sock, mode):
        if mode not in ("r", "w", "rw", "rb", "wb", "rwb"):
            raise ValueError("invalid mode: %r" % mode)
        io.RawIOBase.__init__(self)
        self._sock = sock
        if "b" not in mode:
            mode += "b"
        self._mode = mode
        self._reading = "r" in mode
        self._writing = "w" in mode
        self._timeout_occurred = False 

def isatty(self):
        io.RawIOBase.isatty(self)
        return True 

def isatty(self):
        io.RawIOBase.isatty(self)
        return True 

def isatty(self):
        io.RawIOBase.isatty(self)
        return True 

def open(self, fname, mode='r', psw=None):
        """Returns file-like object (:class:`RarExtFile`) from where the data can be read.

        The object implements :class:`io.RawIOBase` interface, so it can
        be further wrapped with :class:`io.BufferedReader`
        and :class:`io.TextIOWrapper`.

        On older Python where io module is not available, it implements
        only .read(), .seek(), .tell() and .close() methods.

        The object is seekable, although the seeking is fast only on
        uncompressed files, on compressed files the seeking is implemented
        by reading ahead and/or restarting the decompression.

        Parameters:

            fname
                file name or RarInfo instance.
            mode
                must be 'r'
            psw
                password to use for extracting.
        """

        if mode != 'r':
            raise NotImplementedError("RarFile.open() supports only mode=r")

        # entry lookup
        inf = self.getinfo(fname)
        if inf.isdir():
            raise TypeError("Directory does not have any data: " + inf.filename)

        # check password
        if inf.needs_password():
            psw = psw or self._password
            if psw is None:
                raise PasswordRequired("File %s requires password" % inf.filename)
        else:
            psw = None

        return self._file_parser.open(inf, psw) 

def isatty(self):
        io.RawIOBase.isatty(self)
        return True 

def test_io_unbuffered_works(self):
        p = subprocess.Popen([sys.executable, "-c", "import sys; sys.exit(0)"],
                             stdin=subprocess.PIPE, stdout=subprocess.PIPE,
                             stderr=subprocess.PIPE, bufsize=0)
        try:
            self.assertIsInstance(p.stdin, io.RawIOBase)
            self.assertIsInstance(p.stdout, io.RawIOBase)
            self.assertIsInstance(p.stderr, io.RawIOBase)
        finally:
            p.stdin.close()
            p.stdout.close()
            p.stderr.close()
            p.wait() 

def test_open_common(self):
        p = self.cls(BASE)
        with (p / 'fileA').open('r') as f:
            self.assertIsInstance(f, io.TextIOBase)
            self.assertEqual(f.read(), "this is file A\n")
        with (p / 'fileA').open('rb') as f:
            self.assertIsInstance(f, io.BufferedIOBase)
            self.assertEqual(f.read().strip(), b"this is file A")
        with (p / 'fileA').open('rb', buffering=0) as f:
            self.assertIsInstance(f, io.RawIOBase)
            self.assertEqual(f.read().strip(), b"this is file A") 

def close(self):
        """Close the SocketIO object.  This doesn't close the underlying
        socket, except if all references to it have disappeared.
        """
        if self.closed:
            return
        io.RawIOBase.close(self)
        self._sock._decref_socketios()
        self._sock = None 

def __init__(self, sock, mode):
        if mode not in ("r", "w", "rw", "rb", "wb", "rwb"):
            raise ValueError("invalid mode: %r" % mode)
        io.RawIOBase.__init__(self)
        self._sock = sock
        if "b" not in mode:
            mode += "b"
        self._mode = mode
        self._reading = "r" in mode
        self._writing = "w" in mode
        self._timeout_occurred = False 

def _gettextwriter(out, encoding):
    if out is None:
        import sys
        return sys.stdout

    if isinstance(out, io.TextIOBase):
        # use a text writer as is
        return out

    if isinstance(out, (codecs.StreamWriter, codecs.StreamReaderWriter)):
        # use a codecs stream writer as is
        return out

    # wrap a binary writer with TextIOWrapper
    if isinstance(out, io.RawIOBase):
        # Keep the original file open when the TextIOWrapper is
        # destroyed
        class _wrapper:
            __class__ = out.__class__
            def __getattr__(self, name):
                return getattr(out, name)
        buffer = _wrapper()
        buffer.close = lambda: None
    else:
        # This is to handle passed objects that aren't in the
        # IOBase hierarchy, but just have a write method
        buffer = io.BufferedIOBase()
        buffer.writable = lambda: True
        buffer.write = out.write
        try:
            # TextIOWrapper uses this methods to determine
            # if BOM (for UTF-16, etc) should be added
            buffer.seekable = out.seekable
            buffer.tell = out.tell
        except AttributeError:
            pass
    return io.TextIOWrapper(buffer, encoding=encoding,
                            errors='xmlcharrefreplace',
                            newline='\n',
                            write_through=True) 

def close(self):
        """Close the SocketIO object.  This doesn't close the underlying
        socket, except if all references to it have disappeared.
        """
        if self.closed:
            return
        io.RawIOBase.close(self)
        self._sock._decref_socketios()
        self._sock = None 

def __init__(self, sock, mode):
        if mode not in ("r", "w", "rw", "rb", "wb", "rwb"):
            raise ValueError("invalid mode: %r" % mode)
        io.RawIOBase.__init__(self)
        self._sock = sock
        if "b" not in mode:
            mode += "b"
        self._mode = mode
        self._reading = "r" in mode
        self._writing = "w" in mode
        self._timeout_occurred = False 

def close(self):
        """Close the SocketIO object.  This doesn't close the underlying
        socket, except if all references to it have disappeared.
        """
        if self.closed:
            return
        io.RawIOBase.close(self)
        self._sock._decref_socketios()
        self._sock = None 

def __init__(self, sock, mode):
        if mode not in ("r", "w", "rw", "rb", "wb", "rwb"):
            raise ValueError("invalid mode: %r" % mode)
        io.RawIOBase.__init__(self)
        self._sock = sock
        if "b" not in mode:
            mode += "b"
        self._mode = mode
        self._reading = "r" in mode
        self._writing = "w" in mode
        self._timeout_occurred = False 

def close(self):
        """Close the SocketIO object.  This doesn't close the underlying
        socket, except if all references to it have disappeared.
        """
        if self.closed:
            return
        io.RawIOBase.close(self)
        self._sock._decref_socketios()
        self._sock = None 

def __init__(self, sock, mode):
        if mode not in ("r", "w", "rw", "rb", "wb", "rwb"):
            raise ValueError("invalid mode: %r" % mode)
        io.RawIOBase.__init__(self)
        self._sock = sock
        if "b" not in mode:
            mode += "b"
        self._mode = mode
        self._reading = "r" in mode
        self._writing = "w" in mode
        self._timeout_occurred = False 

def isatty(self):
        io.RawIOBase.isatty(self)
        return True