How to use the genshi.core.StreamEventKind function in Genshi

if dir_cls in self._dir_order:
            return self._dir_order.index(dir_cls)
        return len(self._dir_order)


class Template(DirectiveFactory):
    """Abstract template base class.
    
    This class implements most of the template processing model, but does not
    specify the syntax of templates.
    """

    EXEC = StreamEventKind('EXEC')
    """Stream event kind representing a Python code suite to execute."""

    EXPR = StreamEventKind('EXPR')
    """Stream event kind representing a Python expression."""

    INCLUDE = StreamEventKind('INCLUDE')
    """Stream event kind representing the inclusion of another template."""

    SUB = StreamEventKind('SUB')
    """Stream event kind representing a nested stream to which one or more
    directives should be applied.
    """

    serializer = None
    _number_conv = unicode # function used to convert numbers to event data

    def __init__(self, source, filepath=None, filename=None, loader=None,
                 encoding=None, lookup='strict', allow_exec=True):
        """Initialize a template from either a string, a file-like object, or

XML_NAMESPACE, _ensure, StreamEventKind
from genshi.template.eval import _ast
from genshi.template.base import DirectiveFactory, EXPR, SUB, _apply_directives
from genshi.template.directives import Directive, StripDirective
from genshi.template.markup import MarkupTemplate, EXEC
from genshi.compat import IS_PYTHON2

__all__ = ['Translator', 'extract']
__docformat__ = 'restructuredtext en'


I18N_NAMESPACE = Namespace('http://genshi.edgewall.org/i18n')

MSGBUF = StreamEventKind('MSGBUF')
SUB_START = StreamEventKind('SUB_START')
SUB_END = StreamEventKind('SUB_END')

GETTEXT_FUNCTIONS = ('_', 'gettext', 'ngettext', 'dgettext', 'dngettext',
                     'ugettext', 'ungettext')


class I18NDirective(Directive):
    """Simple interface for i18n directives to support messages extraction."""

    def __call__(self, stream, directives, ctxt, **vars):
        return _apply_directives(stream, directives, ctxt, vars)


class ExtractableI18NDirective(I18NDirective):
    """Simple interface for directives to support messages extraction."""

    def extract(self, translator, stream, gettext_functions=GETTEXT_FUNCTIONS,

``position`` is ``(None, -1, -1)``.
    
    Also provided are ways to serialize the stream to text. The `serialize()`
    method will return an iterator over generated strings, while `render()`
    returns the complete generated text at once. Both accept various parameters
    that impact the way the stream is serialized.
    """
    __slots__ = ['events', 'serializer']

    START = StreamEventKind('START') #: a start tag
    END = StreamEventKind('END') #: an end tag
    TEXT = StreamEventKind('TEXT') #: literal text
    XML_DECL = StreamEventKind('XML_DECL') #: XML declaration
    DOCTYPE = StreamEventKind('DOCTYPE') #: doctype declaration
    START_NS = StreamEventKind('START_NS') #: start namespace mapping
    END_NS = StreamEventKind('END_NS') #: end namespace mapping
    START_CDATA = StreamEventKind('START_CDATA') #: start CDATA section
    END_CDATA = StreamEventKind('END_CDATA') #: end CDATA section
    PI = StreamEventKind('PI') #: processing instruction
    COMMENT = StreamEventKind('COMMENT') #: comment

    def __init__(self, events, serializer=None):
        """Initialize the stream with a sequence of markup events.
        
        :param events: a sequence or iterable providing the events
        :param serializer: the default serialization method to use for this
                           stream

        :note: Changed in 0.5: added the `serializer` argument
        """
        self.events = events #: The underlying iterable producing the events
        self.serializer = serializer #: The default serializion method

"""Abstract template base class.
    
    This class implements most of the template processing model, but does not
    specify the syntax of templates.
    """

    EXEC = StreamEventKind('EXEC')
    """Stream event kind representing a Python code suite to execute."""

    EXPR = StreamEventKind('EXPR')
    """Stream event kind representing a Python expression."""

    INCLUDE = StreamEventKind('INCLUDE')
    """Stream event kind representing the inclusion of another template."""

    SUB = StreamEventKind('SUB')
    """Stream event kind representing a nested stream to which one or more
    directives should be applied.
    """

    serializer = None
    _number_conv = unicode # function used to convert numbers to event data

    def __init__(self, source, filepath=None, filename=None, loader=None,
                 encoding=None, lookup='strict', allow_exec=True):
        """Initialize a template from either a string, a file-like object, or
        an already parsed markup stream.
        
        :param source: a string, file-like object, or markup stream to read the
                       template from
        :param filepath: the absolute path to the template file
        :param filename: the path to the template file relative to the search

original element or text in the input. If the original location is unknown,
    ``position`` is ``(None, -1, -1)``.
    
    Also provided are ways to serialize the stream to text. The `serialize()`
    method will return an iterator over generated strings, while `render()`
    returns the complete generated text at once. Both accept various parameters
    that impact the way the stream is serialized.
    """
    __slots__ = ['events', 'serializer']

    START = StreamEventKind('START') #: a start tag
    END = StreamEventKind('END') #: an end tag
    TEXT = StreamEventKind('TEXT') #: literal text
    XML_DECL = StreamEventKind('XML_DECL') #: XML declaration
    DOCTYPE = StreamEventKind('DOCTYPE') #: doctype declaration
    START_NS = StreamEventKind('START_NS') #: start namespace mapping
    END_NS = StreamEventKind('END_NS') #: end namespace mapping
    START_CDATA = StreamEventKind('START_CDATA') #: start CDATA section
    END_CDATA = StreamEventKind('END_CDATA') #: end CDATA section
    PI = StreamEventKind('PI') #: processing instruction
    COMMENT = StreamEventKind('COMMENT') #: comment

    def __init__(self, events, serializer=None):
        """Initialize the stream with a sequence of markup events.
        
        :param events: a sequence or iterable providing the events
        :param serializer: the default serialization method to use for this
                           stream

        :note: Changed in 0.5: added the `serializer` argument
        """
        self.events = events #: The underlying iterable producing the events

"""Abstract template base class.
    
    This class implements most of the template processing model, but does not
    specify the syntax of templates.
    """

    EXEC = StreamEventKind('EXEC')
    """Stream event kind representing a Python code suite to execute."""

    EXPR = StreamEventKind('EXPR')
    """Stream event kind representing a Python expression."""

    INCLUDE = StreamEventKind('INCLUDE')
    """Stream event kind representing the inclusion of another template."""

    SUB = StreamEventKind('SUB')
    """Stream event kind representing a nested stream to which one or more
    directives should be applied.
    """

    serializer = None
    _number_conv = str # function used to convert numbers to event data

    def __init__(self, source, filepath=None, filename=None, loader=None,
                 encoding=None, lookup='strict', allow_exec=True):
        """Initialize a template from either a string, a file-like object, or
        an already parsed markup stream.
        
        :param source: a string, file-like object, or markup stream to read the
                       template from
        :param filepath: the absolute path to the template file
        :param filename: the path to the template file relative to the search

XML_NAMESPACE, _ensure, StreamEventKind
from genshi.template.eval import _ast
from genshi.template.base import DirectiveFactory, EXPR, SUB, _apply_directives
from genshi.template.directives import Directive, StripDirective
from genshi.template.markup import MarkupTemplate, EXEC
from genshi.compat import IS_PYTHON2

__all__ = ['Translator', 'extract']
__docformat__ = 'restructuredtext en'


I18N_NAMESPACE = Namespace('http://genshi.edgewall.org/i18n')

MSGBUF = StreamEventKind('MSGBUF')
SUB_START = StreamEventKind('SUB_START')
SUB_END = StreamEventKind('SUB_END')

GETTEXT_FUNCTIONS = ('_', 'gettext', 'ngettext', 'dgettext', 'dngettext',
                     'ugettext', 'ungettext')


class I18NDirective(Directive):
    """Simple interface for i18n directives to support messages extraction."""

    def __call__(self, stream, directives, ctxt, **vars):
        return _apply_directives(stream, directives, ctxt, vars)


class ExtractableI18NDirective(I18NDirective):
    """Simple interface for directives to support messages extraction."""

    def extract(self, translator, stream, gettext_functions=GETTEXT_FUNCTIONS,

class Template(DirectiveFactory):
    """Abstract template base class.
    
    This class implements most of the template processing model, but does not
    specify the syntax of templates.
    """

    EXEC = StreamEventKind('EXEC')
    """Stream event kind representing a Python code suite to execute."""

    EXPR = StreamEventKind('EXPR')
    """Stream event kind representing a Python expression."""

    INCLUDE = StreamEventKind('INCLUDE')
    """Stream event kind representing the inclusion of another template."""

    SUB = StreamEventKind('SUB')
    """Stream event kind representing a nested stream to which one or more
    directives should be applied.
    """

    serializer = None
    _number_conv = str # function used to convert numbers to event data

    def __init__(self, source, filepath=None, filename=None, loader=None,
                 encoding=None, lookup='strict', allow_exec=True):
        """Initialize a template from either a string, a file-like object, or
        an already parsed markup stream.
        
        :param source: a string, file-like object, or markup stream to read the

:param dir_cls: the directive class
        :return: the sort key
        """
        if dir_cls in self._dir_order:
            return self._dir_order.index(dir_cls)
        return len(self._dir_order)


class Template(DirectiveFactory):
    """Abstract template base class.
    
    This class implements most of the template processing model, but does not
    specify the syntax of templates.
    """

    EXEC = StreamEventKind('EXEC')
    """Stream event kind representing a Python code suite to execute."""

    EXPR = StreamEventKind('EXPR')
    """Stream event kind representing a Python expression."""

    INCLUDE = StreamEventKind('INCLUDE')
    """Stream event kind representing the inclusion of another template."""

    SUB = StreamEventKind('SUB')
    """Stream event kind representing a nested stream to which one or more
    directives should be applied.
    """

    serializer = None
    _number_conv = unicode # function used to convert numbers to event data

``(filename, line, offset)`` tuple that contains the location of the
    original element or text in the input. If the original location is unknown,
    ``position`` is ``(None, -1, -1)``.
    
    Also provided are ways to serialize the stream to text. The `serialize()`
    method will return an iterator over generated strings, while `render()`
    returns the complete generated text at once. Both accept various parameters
    that impact the way the stream is serialized.
    """
    __slots__ = ['events', 'serializer']

    START = StreamEventKind('START') #: a start tag
    END = StreamEventKind('END') #: an end tag
    TEXT = StreamEventKind('TEXT') #: literal text
    XML_DECL = StreamEventKind('XML_DECL') #: XML declaration
    DOCTYPE = StreamEventKind('DOCTYPE') #: doctype declaration
    START_NS = StreamEventKind('START_NS') #: start namespace mapping
    END_NS = StreamEventKind('END_NS') #: end namespace mapping
    START_CDATA = StreamEventKind('START_CDATA') #: start CDATA section
    END_CDATA = StreamEventKind('END_CDATA') #: end CDATA section
    PI = StreamEventKind('PI') #: processing instruction
    COMMENT = StreamEventKind('COMMENT') #: comment

    def __init__(self, events, serializer=None):
        """Initialize the stream with a sequence of markup events.
        
        :param events: a sequence or iterable providing the events
        :param serializer: the default serialization method to use for this
                           stream

        :note: Changed in 0.5: added the `serializer` argument
        """