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Python errors.UndecodableBytesDefect方法代码示例

本文整理汇总了Python中future.backports.email.errors.UndecodableBytesDefect方法的典型用法代码示例。如果您正苦于以下问题:Python errors.UndecodableBytesDefect方法的具体用法?Python errors.UndecodableBytesDefect怎么用?Python errors.UndecodableBytesDefect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future.backports.email.errors的用法示例。


在下文中一共展示了errors.UndecodableBytesDefect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: decode

# 需要导入模块: from future.backports.email import errors [as 别名]
# 或者: from future.backports.email.errors import UndecodableBytesDefect [as 别名]
def decode(ew):
    """Decode encoded word and return (string, charset, lang, defects) tuple.

    An RFC 2047/2243 encoded word has the form:

        =?charset*lang?cte?encoded_string?=

    where '*lang' may be omitted but the other parts may not be.

    This function expects exactly such a string (that is, it does not check the
    syntax and may raise errors if the string is not well formed), and returns
    the encoded_string decoded first from its Content Transfer Encoding and
    then from the resulting bytes into unicode using the specified charset.  If
    the cte-decoded string does not successfully decode using the specified
    character set, a defect is added to the defects list and the unknown octets
    are replaced by the unicode 'unknown' character \uFDFF.

    The specified charset and language are returned.  The default for language,
    which is rarely if ever encountered, is the empty string.

    """
    _, charset, cte, cte_string, _ = str(ew).split('?')
    charset, _, lang = charset.partition('*')
    cte = cte.lower()
    # Recover the original bytes and do CTE decoding.
    bstring = cte_string.encode('ascii', 'surrogateescape')
    bstring, defects = _cte_decoders[cte](bstring)
    # Turn the CTE decoded bytes into unicode.
    try:
        string = bstring.decode(charset)
    except UnicodeError:
        defects.append(errors.UndecodableBytesDefect("Encoded word "
            "contains bytes not decodable using {} charset".format(charset)))
        string = bstring.decode(charset, 'surrogateescape')
    except LookupError:
        string = bstring.decode('ascii', 'surrogateescape')
        if charset.lower() != 'unknown-8bit':
            defects.append(errors.CharsetError("Unknown charset {} "
                "in encoded word; decoded as unknown bytes".format(charset)))
    return string, charset, lang, defects 
开发者ID:Soft8Soft,项目名称:verge3d-blender-addon,代码行数:42,代码来源:_encoded_words.py

示例2: _fold

# 需要导入模块: from future.backports.email import errors [as 别名]
# 或者: from future.backports.email.errors import UndecodableBytesDefect [as 别名]
def _fold(self, folded):
        for part in self.parts:
            tstr = str(part)
            tlen = len(tstr)
            try:
                str(part).encode('us-ascii')
            except UnicodeEncodeError:
                if any(isinstance(x, errors.UndecodableBytesDefect)
                        for x in part.all_defects):
                    charset = 'unknown-8bit'
                else:
                    # XXX: this should be a policy setting
                    charset = 'utf-8'
                tstr = part.cte_encode(charset, folded.policy)
                tlen = len(tstr)
            if folded.append_if_fits(part, tstr):
                continue
            # Peel off the leading whitespace if any and make it sticky, to
            # avoid infinite recursion.
            ws = part.pop_leading_fws()
            if ws is not None:
                # Peel off the leading whitespace and make it sticky, to
                # avoid infinite recursion.
                folded.stickyspace = str(part.pop(0))
                if folded.append_if_fits(part):
                    continue
            if part.has_fws:
                part._fold(folded)
                continue
            # There are no fold points in this one; it is too long for a single
            # line and can't be split...we just have to put it on its own line.
            folded.append(tstr)
            folded.newline() 
开发者ID:Soft8Soft,项目名称:verge3d-blender-addon,代码行数:35,代码来源:_header_value_parser.py

示例3: params

# 需要导入模块: from future.backports.email import errors [as 别名]
# 或者: from future.backports.email.errors import UndecodableBytesDefect [as 别名]
def params(self):
        # The RFC specifically states that the ordering of parameters is not
        # guaranteed and may be reordered by the transport layer.  So we have
        # to assume the RFC 2231 pieces can come in any order.  However, we
        # output them in the order that we first see a given name, which gives
        # us a stable __str__.
        params = OrderedDict()
        for token in self:
            if not token.token_type.endswith('parameter'):
                continue
            if token[0].token_type != 'attribute':
                continue
            name = token[0].value.strip()
            if name not in params:
                params[name] = []
            params[name].append((token.section_number, token))
        for name, parts in params.items():
            parts = sorted(parts)
            # XXX: there might be more recovery we could do here if, for
            # example, this is really a case of a duplicate attribute name.
            value_parts = []
            charset = parts[0][1].charset
            for i, (section_number, param) in enumerate(parts):
                if section_number != i:
                    param.defects.append(errors.InvalidHeaderDefect(
                        "inconsistent multipart parameter numbering"))
                value = param.param_value
                if param.extended:
                    try:
                        value = unquote_to_bytes(value)
                    except UnicodeEncodeError:
                        # source had surrogate escaped bytes.  What we do now
                        # is a bit of an open question.  I'm not sure this is
                        # the best choice, but it is what the old algorithm did
                        value = unquote(value, encoding='latin-1')
                    else:
                        try:
                            value = value.decode(charset, 'surrogateescape')
                        except LookupError:
                            # XXX: there should really be a custom defect for
                            # unknown character set to make it easy to find,
                            # because otherwise unknown charset is a silent
                            # failure.
                            value = value.decode('us-ascii', 'surrogateescape')
                        if utils._has_surrogates(value):
                            param.defects.append(errors.UndecodableBytesDefect())
                value_parts.append(value)
            value = ''.join(value_parts)
            yield name, value 
开发者ID:Soft8Soft,项目名称:verge3d-blender-addon,代码行数:51,代码来源:_header_value_parser.py


注:本文中的future.backports.email.errors.UndecodableBytesDefect方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。