本文整理汇总了Python中os.device_encoding方法的典型用法代码示例。如果您正苦于以下问题：Python os.device_encoding方法的具体用法？Python os.device_encoding怎么用？Python os.device_encoding使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类os的用法示例。
在下文中一共展示了os.device_encoding方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_bad_fd
# 需要导入模块: import os [as 别名]
# 或者: from os import device_encoding [as 别名]
def test_bad_fd(self):
# Return None when an fd doesn't actually exist.
self.assertIsNone(os.device_encoding(123456)) 示例2: test_device_encoding
# 需要导入模块: import os [as 别名]
# 或者: from os import device_encoding [as 别名]
def test_device_encoding(self):
encoding = os.device_encoding(0)
self.assertIsNotNone(encoding)
self.assertTrue(codecs.lookup(encoding)) 示例3: __init__
# 需要导入模块: import os [as 别名]
# 或者: from os import device_encoding [as 别名]
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)