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편집 파일: converters.pyc
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Functions to handle conversion of byte :class:`str` and :class:`unicode` strings. .. versionchanged:: kitchen 0.2a2 ; API kitchen.text 2.0.0 Added :func:`~kitchen.text.converters.getwriter` .. versionchanged:: kitchen 0.2.2 ; API kitchen.text 2.1.0 Added :func:`~kitchen.text.converters.exception_to_unicode`, :func:`~kitchen.text.converters.exception_to_bytes`, :data:`~kitchen.text.converters.EXCEPTION_CONVERTERS`, and :data:`~kitchen.text.converters.BYTE_EXCEPTION_CONVERTERS` .. versionchanged:: kitchen 1.0.1 ; API kitchen.text 2.1.1 Deprecated :data:`~kitchen.text.converters.BYTE_EXCEPTION_CONVERTERS` as we've simplified :func:`~kitchen.text.converters.exception_to_unicode` and :func:`~kitchen.text.converters.exception_to_bytes` to make it unnecessary i����( t b64encodet b64decodeN( t sets( t ControlCharErrort XmlEncodeError( t guess_encodingt html_entities_unescapet process_control_charss utf-8s UTF-8t utf8t UTF8t utf_8t UTF_8t utft UTFt u8t U8s latin-1s LATIN-1t latin1t LATIN1t latint LATINt l1t L1t cp819t CP819t 8859s iso8859-1s ISO8859-1s iso-8859-1s ISO-8859-1t replacec C s+ t | t � rj t | t � r" | S| t k r> t | d | � S| t k rZ t | d | � S| j | | � S| r� t j t j d � t d d �| s� | } q� n | s� d } n | d k r� d S| d k r� | S| d k r�y | j � } Wn t t f k r d } n X| siy t | � } Wqit k rey | j � } Wqft t f k rad } qfXqiXn t | t � s�t | | | � S| S| d k rt | � } t | t � s�t | | | � } n | d k r�| St t j d � i | j | d � d 6� � n t t j d � i | d 6� � d S( s} Convert an object into a :class:`unicode` string :arg obj: Object to convert to a :class:`unicode` string. This should normally be a byte :class:`str` :kwarg encoding: What encoding to try converting the byte :class:`str` as. Defaults to :term:`utf-8` :kwarg errors: If errors are found while decoding, perform this action. Defaults to ``replace`` which replaces the invalid bytes with a character that means the bytes were unable to be decoded. Other values are the same as the error handling schemes in the `codec base classes <http://docs.python.org/library/codecs.html#codec-base-classes>`_. For instance ``strict`` which raises an exception and ``ignore`` which simply omits the non-decodable characters. :kwarg nonstring: How to treat nonstring values. Possible values are: :simplerepr: Attempt to call the object's "simple representation" method and return that value. Python-2.3+ has two methods that try to return a simple representation: :meth:`object.__unicode__` and :meth:`object.__str__`. We first try to get a usable value from :meth:`object.__unicode__`. If that fails we try the same with :meth:`object.__str__`. :empty: Return an empty :class:`unicode` string :strict: Raise a :exc:`TypeError` :passthru: Return the object unchanged :repr: Attempt to return a :class:`unicode` string of the repr of the object Default is ``simplerepr`` :kwarg non_string: *Deprecated* Use :attr:`nonstring` instead :raises TypeError: if :attr:`nonstring` is ``strict`` and a non-:class:`basestring` object is passed in or if :attr:`nonstring` is set to an unknown value :raises UnicodeDecodeError: if :attr:`errors` is ``strict`` and :attr:`obj` is not decodable using the given encoding :returns: :class:`unicode` string or the original object depending on the value of :attr:`nonstring`. Usually this should be used on a byte :class:`str` but it can take both byte :class:`str` and :class:`unicode` strings intelligently. Nonstring objects are handled in different ways depending on the setting of the :attr:`nonstring` parameter. The default values of this function are set so as to always return a :class:`unicode` string and never raise an error when converting from a byte :class:`str` to a :class:`unicode` string. However, when you do not pass validly encoded text (or a nonstring object), you may end up with output that you don't expect. Be sure you understand the requirements of your data, not just ignore errors by passing it through this function. .. versionchanged:: 0.2.1a2 Deprecated :attr:`non_string` in favor of :attr:`nonstring` parameter and changed default value to ``simplerepr`` s utf-8s latin-1sL non_string is a deprecated parameter of to_unicode(). Use nonstring insteadt stackleveli t simplereprt emptyu t passthrut reprt strictsW to_unicode was given "%(obj)s" which is neither a byte string (str) or a unicode stringR t objs8 nonstring value, %(param)s, is not set to a valid actiont paramN( s reprs strict( t isinstancet basestringt unicodet _UTF8_ALIASESt _LATIN1_ALIASESt decodet warningst warnt kt b_t DeprecationWarningt __unicode__t AttributeErrort UnicodeErrort Nonet strt __str__R t TypeErrort encode( R t encodingt errorst nonstringt non_stringt simplet obj_repr( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt to_unicodeI s\ 9 c C s t | t � r2 t | t � r" | S| j | | � S| ri t j t j d � t d d �| si | } qi n | sx d } n | d k r� d S| d k r� | S| d k rYy t | � } WnA t k r� y | j � } Wq� t t f k r� d } q� Xn X| s1y | j � } Wq1t t f k r-d } q1Xn t | t � rU| j | d � } n | S| d k r�y | j � } Wn t t f k r�d } n Xt | t � r�| j | | � } n t | � } | d k r�| St t j d � i | d 6� � n t t j d � i | d 6� � d S( s� Convert an object into a byte :class:`str` :arg obj: Object to convert to a byte :class:`str`. This should normally be a :class:`unicode` string. :kwarg encoding: Encoding to use to convert the :class:`unicode` string into a byte :class:`str`. Defaults to :term:`utf-8`. :kwarg errors: If errors are found while encoding, perform this action. Defaults to ``replace`` which replaces the invalid bytes with a character that means the bytes were unable to be encoded. Other values are the same as the error handling schemes in the `codec base classes <http://docs.python.org/library/codecs.html#codec-base-classes>`_. For instance ``strict`` which raises an exception and ``ignore`` which simply omits the non-encodable characters. :kwarg nonstring: How to treat nonstring values. Possible values are: :simplerepr: Attempt to call the object's "simple representation" method and return that value. Python-2.3+ has two methods that try to return a simple representation: :meth:`object.__unicode__` and :meth:`object.__str__`. We first try to get a usable value from :meth:`object.__str__`. If that fails we try the same with :meth:`object.__unicode__`. :empty: Return an empty byte :class:`str` :strict: Raise a :exc:`TypeError` :passthru: Return the object unchanged :repr: Attempt to return a byte :class:`str` of the :func:`repr` of the object Default is ``simplerepr``. :kwarg non_string: *Deprecated* Use :attr:`nonstring` instead. :raises TypeError: if :attr:`nonstring` is ``strict`` and a non-:class:`basestring` object is passed in or if :attr:`nonstring` is set to an unknown value. :raises UnicodeEncodeError: if :attr:`errors` is ``strict`` and all of the bytes of :attr:`obj` are unable to be encoded using :attr:`encoding`. :returns: byte :class:`str` or the original object depending on the value of :attr:`nonstring`. .. warning:: If you pass a byte :class:`str` into this function the byte :class:`str` is returned unmodified. It is **not** re-encoded with the specified :attr:`encoding`. The easiest way to achieve that is:: to_bytes(to_unicode(text), encoding='utf-8') The initial :func:`to_unicode` call will ensure text is a :class:`unicode` string. Then, :func:`to_bytes` will turn that into a byte :class:`str` with the specified encoding. Usually, this should be used on a :class:`unicode` string but it can take either a byte :class:`str` or a :class:`unicode` string intelligently. Nonstring objects are handled in different ways depending on the setting of the :attr:`nonstring` parameter. The default values of this function are set so as to always return a byte :class:`str` and never raise an error when converting from unicode to bytes. However, when you do not pass an encoding that can validly encode the object (or a non-string object), you may end up with output that you don't expect. Be sure you understand the requirements of your data, not just ignore errors by passing it through this function. .. versionchanged:: 0.2.1a2 Deprecated :attr:`non_string` in favor of :attr:`nonstring` parameter and changed default value to ``simplerepr`` sJ non_string is a deprecated parameter of to_bytes(). Use nonstring insteadR i R R t R R R R sU to_bytes was given "%(obj)s" which is neither a unicode string or a byte string (str)R s8 nonstring value, %(param)s, is not set to a valid actionR! N( s reprs strict( R" R# R1 R4 R( R) R* R+ R, R/ R2 R. R0 R- R$ t __repr__R3 ( R R5 R6 R7 R8 R9 R: ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt to_bytes� s\ E c C s& d t j f d � � Y} | | _ | S( s� Return a :class:`codecs.StreamWriter` that resists tracing back. :arg encoding: Encoding to use for transforming :class:`unicode` strings into byte :class:`str`. :rtype: :class:`codecs.StreamWriter` :returns: :class:`~codecs.StreamWriter` that you can instantiate to wrap output streams to automatically translate :class:`unicode` strings into :attr:`encoding`. This is a reimplemetation of :func:`codecs.getwriter` that returns a :class:`~codecs.StreamWriter` that resists issuing tracebacks. The :class:`~codecs.StreamWriter` that is returned uses :func:`kitchen.text.converters.to_bytes` to convert :class:`unicode` strings into byte :class:`str`. The departures from :func:`codecs.getwriter` are: 1) The :class:`~codecs.StreamWriter` that is returned will take byte :class:`str` as well as :class:`unicode` strings. Any byte :class:`str` will be passed through unmodified. 2) The default error handler for unknown bytes is to ``replace`` the bytes with the unknown character (``?`` in most ascii-based encodings, ``�`` in the utf encodings) whereas :func:`codecs.getwriter` defaults to ``strict``. Like :class:`codecs.StreamWriter`, the returned :class:`~codecs.StreamWriter` can have its error handler changed in code by setting ``stream.errors = 'new_handler_name'`` Example usage:: $ LC_ALL=C python >>> import sys >>> from kitchen.text.converters import getwriter >>> UTF8Writer = getwriter('utf-8') >>> unwrapped_stdout = sys.stdout >>> sys.stdout = UTF8Writer(unwrapped_stdout) >>> print 'caf\xc3\xa9' café >>> print u'caf\xe9' café >>> ASCIIWriter = getwriter('ascii') >>> sys.stdout = ASCIIWriter(unwrapped_stdout) >>> print 'caf\xc3\xa9' café >>> print u'caf\xe9' caf? .. seealso:: API docs for :class:`codecs.StreamWriter` and :func:`codecs.getwriter` and `Print Fails <http://wiki.python.org/moin/PrintFails>`_ on the python wiki. .. versionadded:: kitchen 0.2a2, API: kitchen.text 1.1.0 t _StreamWriterc B s e Z d d � Z d d � Z RS( R c S s t j j | | | � d S( N( t codecst StreamWritert __init__( t selft streamR6 ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyRB h s c S s% t | d | j d | �t | � f S( NR5 R6 ( R> R5 t len( RC t msgR6 ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyR4 k s ( t __name__t __module__RB R4 ( ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyR? a s ( R@ RA R5 ( R5 R? ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt getwriter, s 5 R c C s; t j t j d � t d d �t | d d d | d | �S( s� *Deprecated* Convert :class:`unicode` to an encoded :term:`utf-8` byte :class:`str`. You should be using :func:`to_bytes` instead:: to_bytes(obj, encoding='utf-8', non_string='passthru') s� kitchen.text.converters.to_utf8 is deprecated. Use kitchen.text.converters.to_bytes(obj, encoding="utf-8", nonstring="passthru" instead.R i R5 s utf-8R6 R7 ( R( R) R* R+ R, R> ( R R6 R8 ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt to_utf8r s c C s/ t j t j d � t d d �t | d d �S( s *Deprecated* This function converts something to a byte :class:`str` if it isn't one. It's used to call :func:`str` or :func:`unicode` on the object to get its simple representation without danger of getting a :exc:`UnicodeError`. You should be using :func:`to_unicode` or :func:`to_bytes` explicitly instead. If you need :class:`unicode` strings:: to_unicode(obj, nonstring='simplerepr') If you need byte :class:`str`:: to_bytes(obj, nonstring='simplerepr') sm to_str is deprecated. Use to_unicode or to_bytes instead. See the to_str docstring for porting information.R i R7 R ( R( R) R* R+ R, R> ( R ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt to_str� s c C s | j d S( Ni ( t args( t e( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt <lambda>� s c C s | S( N( ( RM ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyRN � s c C s t | j d � S( Ni ( R> RL ( RM ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyRN � s c C s< d } x) | D]! } y | | � } Wn q XPq Wt | � S( s� Convert an exception object into a unicode representation :arg exc: Exception object to convert :kwarg converters: List of functions to use to convert the exception into a string. See :data:`EXCEPTION_CONVERTERS` for the default value and an example of adding other converters to the defaults. The functions in the list are tried one at a time to see if they can extract a string from the exception. The first one to do so without raising an exception is used. :returns: :class:`unicode` string representation of the exception. The value extracted by the :attr:`converters` will be converted into :class:`unicode` before being returned using the :term:`utf-8` encoding. If you know you need to use an alternate encoding add a function that does that to the list of functions in :attr:`converters`) .. versionadded:: 0.2.2 u% <exception failed to convert to text>( R; ( t exct convertersRF t func( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt exception_to_unicode� s c C s< d } x) | D]! } y | | � } Wn q XPq Wt | � S( s; Convert an exception object into a str representation :arg exc: Exception object to convert :kwarg converters: List of functions to use to convert the exception into a string. See :data:`EXCEPTION_CONVERTERS` for the default value and an example of adding other converters to the defaults. The functions in the list are tried one at a time to see if they can extract a string from the exception. The first one to do so without raising an exception is used. :returns: byte :class:`str` representation of the exception. The value extracted by the :attr:`converters` will be converted into :class:`str` before being returned using the :term:`utf-8` encoding. If you know you need to use an alternate encoding add a function that does that to the list of functions in :attr:`converters`) .. versionadded:: 0.2.2 .. versionchanged:: 1.0.1 Code simplification allowed us to switch to using :data:`EXCEPTION_CONVERTERS` as the default value of :attr:`converters`. s% <exception failed to convert to text>( R> ( RO RP RF RQ ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt exception_to_bytes� s c C s� | s d Sy t | d | �Wnp t k rF t t j d � � � nK t k rk t t j d � � � n& t k r� } t | j d � � n X| j | d � } | r� t j j j | d i d d 6�} n t j j j | � } | S( sd Take a :class:`unicode` string and turn it into a byte :class:`str` suitable for xml :arg string: :class:`unicode` string to encode into an XML compatible byte :class:`str` :kwarg encoding: encoding to use for the returned byte :class:`str`. Default is to encode to :term:`UTF-8`. If some of the characters in :attr:`string` are not encodable in this encoding, the unknown characters will be entered into the output string using xml character references. :kwarg attrib: If :data:`True`, quote the string for use in an xml attribute. If :data:`False` (default), quote for use in an xml text field. :kwarg control_chars: :term:`control characters` are not allowed in XML documents. When we encounter those we need to know what to do. Valid options are: :replace: (default) Replace the control characters with ``?`` :ignore: Remove the characters altogether from the output :strict: Raise an :exc:`~kitchen.text.exceptions.XmlEncodeError` when we encounter a :term:`control character` :raises kitchen.text.exceptions.XmlEncodeError: If :attr:`control_chars` is set to ``strict`` and the string to be made suitable for output to xml contains :term:`control characters` or if :attr:`string` is not a :class:`unicode` string then we raise this exception. :raises ValueError: If :attr:`control_chars` is set to something other than ``replace``, ``ignore``, or ``strict``. :rtype: byte :class:`str` :returns: representation of the :class:`unicode` string as a valid XML byte :class:`str` XML files consist mainly of text encoded using a particular charset. XML also denies the use of certain bytes in the encoded text (example: ``ASCII Null``). There are also special characters that must be escaped if they are present in the input (example: ``<``). This function takes care of all of those issues for you. There are a few different ways to use this function depending on your needs. The simplest invocation is like this:: unicode_to_xml(u'String with non-ASCII characters: <"á と">') This will return the following to you, encoded in :term:`utf-8`:: 'String with non-ASCII characters: <"á と">' Pretty straightforward. Now, what if you need to encode your document in something other than :term:`utf-8`? For instance, ``latin-1``? Let's see:: unicode_to_xml(u'String with non-ASCII characters: <"á と">', encoding='latin-1') 'String with non-ASCII characters: <"á と">' Because the ``と`` character is not available in the ``latin-1`` charset, it is replaced with ``と`` in our output. This is an xml character reference which represents the character at unicode codepoint ``12392``, the ``と`` character. When you want to reverse this, use :func:`xml_to_unicode` which will turn a byte :class:`str` into a :class:`unicode` string and replace the xml character references with the unicode characters. XML also has the quirk of not allowing :term:`control characters` in its output. The :attr:`control_chars` parameter allows us to specify what to do with those. For use cases that don't need absolute character by character fidelity (example: holding strings that will just be used for display in a GUI app later), the default value of ``replace`` works well:: unicode_to_xml(u'String with disallowed control chars: \u0000\u0007') 'String with disallowed control chars: ??' If you do need to be able to reproduce all of the characters at a later date (examples: if the string is a key value in a database or a path on a filesystem) you have many choices. Here are a few that rely on ``utf-7``, a verbose encoding that encodes :term:`control characters` (as well as non-:term:`ASCII` unicode values) to characters from within the :term:`ASCII` printable characters. The good thing about doing this is that the code is pretty simple. You just need to use ``utf-7`` both when encoding the field for xml and when decoding it for use in your python program:: unicode_to_xml(u'String with unicode: と and control char: \u0007', encoding='utf7') 'String with unicode: +MGg and control char: +AAc-' # [...] xml_to_unicode('String with unicode: +MGg and control char: +AAc-', encoding='utf7') u'String with unicode: と and control char: \u0007' As you can see, the ``utf-7`` encoding will transform even characters that would be representable in :term:`utf-8`. This can be a drawback if you want unicode characters in the file to be readable without being decoded first. You can work around this with increased complexity in your application code:: encoding = 'utf-8' u_string = u'String with unicode: と and control char: \u0007' try: # First attempt to encode to utf8 data = unicode_to_xml(u_string, encoding=encoding, errors='strict') except XmlEncodeError: # Fallback to utf-7 encoding = 'utf-7' data = unicode_to_xml(u_string, encoding=encoding, errors='strict') write_tag('<mytag encoding=%s>%s</mytag>' % (encoding, data)) # [...] encoding = tag.attributes.encoding u_string = xml_to_unicode(u_string, encoding=encoding) Using code similar to that, you can have some fields encoded using your default encoding and fallback to ``utf-7`` if there are :term:`control characters` present. .. note:: If your goal is to preserve the :term:`control characters` you cannot save the entire file as ``utf-7`` and set the xml encoding parameter to ``utf-7`` if your goal is to preserve the :term:`control characters`. Because XML doesn't allow :term:`control characters`, you have to encode those separate from any encoding work that the XML parser itself knows about. .. seealso:: :func:`bytes_to_xml` if you're dealing with bytes that are non-text or of an unknown encoding that you must preserve on a byte for byte level. :func:`guess_encoding_to_xml` if you're dealing with strings in unknown encodings that you don't need to save with char-for-char fidelity. R< t strategysi unicode_to_xml must have a unicode type as the first argument. Use bytes_string_to_xml for byte strings.sV The control_chars argument to unicode_to_xml must be one of ignore, replace, or stricti t xmlcharrefreplacet entitiess "t "( R R3 R R* R+ t ValueErrorR RL R4 t xmlt saxt saxutilst escape( t stringR5 t attribt control_charsRO ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt unicode_to_xml# s � %c C s( t | d | d | �} t | � } | S( s Transform a byte :class:`str` from an xml file into a :class:`unicode` string :arg byte_string: byte :class:`str` to decode :kwarg encoding: encoding that the byte :class:`str` is in :kwarg errors: What to do if not every character is valid in :attr:`encoding`. See the :func:`to_unicode` documentation for legal values. :rtype: :class:`unicode` string :returns: string decoded from :attr:`byte_string` This function attempts to reverse what :func:`unicode_to_xml` does. It takes a byte :class:`str` (presumably read in from an xml file) and expands all the html entities into unicode characters and decodes the byte :class:`str` into a :class:`unicode` string. One thing it cannot do is restore any :term:`control characters` that were removed prior to inserting into the file. If you need to keep such characters you need to use :func:`xml_to_bytes` and :func:`bytes_to_xml` or use on of the strategies documented in :func:`unicode_to_xml` instead. R5 R6 ( R; R ( t byte_stringR5 R6 R] ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt xml_to_unicode� s c C sU t | t � s' t t j d � � � n t | | | � } t | d | d | d | �S( s� Make sure a byte :class:`str` is validly encoded for xml output :arg byte_string: Byte :class:`str` to turn into valid xml output :kwarg input_encoding: Encoding of :attr:`byte_string`. Default ``utf-8`` :kwarg errors: How to handle errors encountered while decoding the :attr:`byte_string` into :class:`unicode` at the beginning of the process. Values are: :replace: (default) Replace the invalid bytes with a ``?`` :ignore: Remove the characters altogether from the output :strict: Raise an :exc:`UnicodeDecodeError` when we encounter a non-decodable character :kwarg output_encoding: Encoding for the xml file that this string will go into. Default is ``utf-8``. If all the characters in :attr:`byte_string` are not encodable in this encoding, the unknown characters will be entered into the output string using xml character references. :kwarg attrib: If :data:`True`, quote the string for use in an xml attribute. If :data:`False` (default), quote for use in an xml text field. :kwarg control_chars: XML does not allow :term:`control characters`. When we encounter those we need to know what to do. Valid options are: :replace: (default) Replace the :term:`control characters` with ``?`` :ignore: Remove the characters altogether from the output :strict: Raise an error when we encounter a :term:`control character` :raises XmlEncodeError: If :attr:`control_chars` is set to ``strict`` and the string to be made suitable for output to xml contains :term:`control characters` then we raise this exception. :raises UnicodeDecodeError: If errors is set to ``strict`` and the :attr:`byte_string` contains bytes that are not decodable using :attr:`input_encoding`, this error is raised :rtype: byte :class:`str` :returns: representation of the byte :class:`str` in the output encoding with any bytes that aren't available in xml taken care of. Use this when you have a byte :class:`str` representing text that you need to make suitable for output to xml. There are several cases where this is the case. For instance, if you need to transform some strings encoded in ``latin-1`` to :term:`utf-8` for output:: utf8_string = byte_string_to_xml(latin1_string, input_encoding='latin-1') If you already have strings in the proper encoding you may still want to use this function to remove :term:`control characters`:: cleaned_string = byte_string_to_xml(string, input_encoding='utf-8', output_encoding='utf-8') .. seealso:: :func:`unicode_to_xml` for other ideas on using this function sm byte_string_to_xml can only take a byte string as its first argument. Use unicode_to_xml for unicode stringsR5 R^ R_ ( R" R1 R R* R+ R$ R` ( Ra t input_encodingR6 t output_encodingR^ R_ t u_string( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt byte_string_to_xml� s 9c C s" t | | | � } t | | | � S( s= Transform a byte :class:`str` from an xml file into :class:`unicode` string :arg byte_string: byte :class:`str` to decode :kwarg input_encoding: encoding that the byte :class:`str` is in :kwarg errors: What to do if not every character is valid in :attr:`encoding`. See the :func:`to_unicode` docstring for legal values. :kwarg output_encoding: Encoding for the output byte :class:`str` :returns: :class:`unicode` string decoded from :attr:`byte_string` This function attempts to reverse what :func:`unicode_to_xml` does. It takes a byte :class:`str` (presumably read in from an xml file) and expands all the html entities into unicode characters and decodes the byte :class:`str` into a :class:`unicode` string. One thing it cannot do is restore any :term:`control characters` that were removed prior to inserting into the file. If you need to keep such characters you need to use :func:`xml_to_bytes` and :func:`bytes_to_xml` or use one of the strategies documented in :func:`unicode_to_xml` instead. ( Rb R> ( Ra Rc R6 Rd R] ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt xml_to_byte_string s c O s t | | | � S( s3 Return a byte :class:`str` encoded so it is valid inside of any xml file :arg byte_string: byte :class:`str` to transform :arg \*args, \*\*kwargs: extra arguments to this function are passed on to the function actually implementing the encoding. You can use this to tweak the output in some cases but, as a general rule, you shouldn't because the underlying encoding function is not guaranteed to remain the same. :rtype: byte :class:`str` consisting of all :term:`ASCII` characters :returns: byte :class:`str` representation of the input. This will be encoded using base64. This function is made especially to put binary information into xml documents. This function is intended for encoding things that must be preserved byte-for-byte. If you want to encode a byte string that's text and don't mind losing the actual bytes you probably want to try :func:`byte_string_to_xml` or :func:`guess_encoding_to_xml` instead. .. note:: Although the current implementation uses :func:`base64.b64encode` and there's no plans to change it, that isn't guaranteed. If you want to make sure that you can encode and decode these messages it's best to use :func:`xml_to_bytes` if you use this function to encode. ( R ( Ra RL t kwargs( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt bytes_to_xml4 s c O s t | | | � S( s� Decode a string encoded using :func:`bytes_to_xml` :arg byte_string: byte :class:`str` to transform. This should be a base64 encoded sequence of bytes originally generated by :func:`bytes_to_xml`. :arg \*args, \*\*kwargs: extra arguments to this function are passed on to the function actually implementing the encoding. You can use this to tweak the output in some cases but, as a general rule, you shouldn't because the underlying encoding function is not guaranteed to remain the same. :rtype: byte :class:`str` :returns: byte :class:`str` that's the decoded input If you've got fields in an xml document that were encoded with :func:`bytes_to_xml` then you want to use this function to undecode them. It converts a base64 encoded string into a byte :class:`str`. .. note:: Although the current implementation uses :func:`base64.b64decode` and there's no plans to change it, that isn't guaranteed. If you want to make sure that you can encode and decode these messages it's best to use :func:`bytes_to_xml` if you use this function to decode. ( R ( Ra RL Rh ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt xml_to_bytesT s c C s_ t | t � r+ t | d | d | d | �St | � } t | d | d d d | d | d | �S( s� Return a byte :class:`str` suitable for inclusion in xml :arg string: :class:`unicode` or byte :class:`str` to be transformed into a byte :class:`str` suitable for inclusion in xml. If string is a byte :class:`str` we attempt to guess the encoding. If we cannot guess, we fallback to ``latin-1``. :kwarg output_encoding: Output encoding for the byte :class:`str`. This should match the encoding of your xml file. :kwarg attrib: If :data:`True`, escape the item for use in an xml attribute. If :data:`False` (default) escape the item for use in a text node. :returns: :term:`utf-8` encoded byte :class:`str` R5 R^ R_ Rc R6 R Rd ( R" R$ R` R Rf ( R] Rd R^ R_ Rc ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt guess_encoding_to_xmln s t ignorec C s; t j t j d � t d d �t | d | d | d | �S( s< *Deprecated*: Use :func:`guess_encoding_to_xml` instead si kitchen.text.converters.to_xml is deprecated. Use kitchen.text.converters.guess_encoding_to_xml instead.R i Rd R^ R_ ( R( R) R* R+ R, Rk ( R] R5 R^ R_ ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt to_xml� s t BYTE_EXCEPTION_CONVERTERSt EXCEPTION_CONVERTERSRf Ri RS RR RI Rk R> RK R; RJ Rm R` Rg Rj Rb ( s utf-8s UTF-8s utf8R s utf_8R s utfR s u8R ( s latin-1s LATIN-1s latin1R s latinR s l1R s cp819R s 8859s iso8859-1s ISO8859-1s iso-8859-1s ISO-8859-1( s BYTE_EXCEPTION_CONVERTERSs EXCEPTION_CONVERTERSs byte_string_to_xmls bytes_to_xmls exception_to_bytess exception_to_unicodes getwriters guess_encoding_to_xmls to_bytess to_strs to_unicodes to_utf8s to_xmls unicode_to_xmls xml_to_byte_strings xml_to_bytess xml_to_unicode(- t __doc__t base64R R t ImportErrort kitchen.pycompat24.base64R@ R( t xml.sax.saxutilsRY t kitchenR* t kitchen.pycompat24R t add_builtin_sett kitchen.text.exceptionsR R t kitchen.text.miscR R R t frozensetR% R& R0 R; R> RI RJ RK Ro Rn RR RS t FalseR` Rb Rf Rg Ri Rj Rk Rm t __all__( ( ( s; /usr/lib/python2.7/site-packages/kitchen/text/converters.pyt <module>+ s\ k v F 8 $ �B