Python os.device_encoding() Examples

The following are 8 code examples of os.device_encoding(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module os , or try the search function .
Example #1
Source File: test_os.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def test_bad_fd(self):
        # Return None when an fd doesn't actually exist.
        self.assertIsNone(os.device_encoding(123456))
Example #2
Source File: test_os.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def test_device_encoding(self):
        encoding = os.device_encoding(0)
        self.assertIsNotNone(encoding)
        self.assertTrue(codecs.lookup(encoding))
Example #3
Source File: _pyio.py    From Imogen with MIT License 5 votes vote down vote up 
def __init__(self, buffer, encoding=None, errors=None, newline=None,
                 line_buffering=False, write_through=False):
        self._check_newline(newline)
        if encoding is None:
            try:
                encoding = os.device_encoding(buffer.fileno())
            except (AttributeError, UnsupportedOperation):
                pass
            if encoding is None:
                try:
                    import locale
                except ImportError:
                    # Importing locale may fail if Python is being built
                    encoding = "ascii"
                else:
                    encoding = locale.getpreferredencoding(False)

        if not isinstance(encoding, str):
            raise ValueError("invalid encoding: %r" % encoding)

        if not codecs.lookup(encoding)._is_text_encoding:
            msg = ("%r is not a text encoding; "
                   "use codecs.open() to handle arbitrary codecs")
            raise LookupError(msg % encoding)

        if errors is None:
            errors = "strict"
        else:
            if not isinstance(errors, str):
                raise ValueError("invalid errors: %r" % errors)

        self._buffer = buffer
        self._decoded_chars = ''  # buffer for text returned from decoder
        self._decoded_chars_used = 0  # offset into _decoded_chars for read()
        self._snapshot = None  # info for reconstructing decoder state
        self._seekable = self._telling = self.buffer.seekable()
        self._has_read1 = hasattr(self.buffer, 'read1')
        self._configure(encoding, errors, newline,
                        line_buffering, write_through)
Example #4
Source File: test_os.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def test_bad_fd(self):
        # Return None when an fd doesn't actually exist.
        self.assertIsNone(os.device_encoding(123456))
Example #5
Source File: test_os.py    From ironpython3 with Apache License 2.0 5 votes vote down vote up 
def test_device_encoding(self):
        encoding = os.device_encoding(0)
        self.assertIsNotNone(encoding)
        self.assertTrue(codecs.lookup(encoding))
Example #6
Source File: test_os.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def test_bad_fd(self):
        # Return None when an fd doesn't actually exist.
        self.assertIsNone(os.device_encoding(123456))
Example #7
Source File: test_os.py    From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 5 votes vote down vote up 
def test_device_encoding(self):
        encoding = os.device_encoding(0)
        self.assertIsNotNone(encoding)
        self.assertTrue(codecs.lookup(encoding))
Example #8
Source File: _pyio.py    From android_universal with MIT License 5 votes vote down vote up 
def __init__(self, buffer, encoding=None, errors=None, newline=None,
                 line_buffering=False, write_through=False):
        self._check_newline(newline)
        if encoding is None:
            try:
                encoding = os.device_encoding(buffer.fileno())
            except (AttributeError, UnsupportedOperation):
                pass
            if encoding is None:
                try:
                    import locale
                except ImportError:
                    # Importing locale may fail if Python is being built
                    encoding = "ascii"
                else:
                    encoding = locale.getpreferredencoding(False)

        if not isinstance(encoding, str):
            raise ValueError("invalid encoding: %r" % encoding)

        if not codecs.lookup(encoding)._is_text_encoding:
            msg = ("%r is not a text encoding; "
                   "use codecs.open() to handle arbitrary codecs")
            raise LookupError(msg % encoding)

        if errors is None:
            errors = "strict"
        else:
            if not isinstance(errors, str):
                raise ValueError("invalid errors: %r" % errors)

        self._buffer = buffer
        self._decoded_chars = ''  # buffer for text returned from decoder
        self._decoded_chars_used = 0  # offset into _decoded_chars for read()
        self._snapshot = None  # info for reconstructing decoder state
        self._seekable = self._telling = self.buffer.seekable()
        self._has_read1 = hasattr(self.buffer, 'read1')
        self._configure(encoding, errors, newline,
                        line_buffering, write_through)