share some global config state

converters/config.py

@@ -0,0 +1,20 b''
+from IPython.utils.traitlets import (Unicode, List, Bool)
+from IPython.config.configurable import Configurable
+
+class GlobalConfigurable(Configurable):
+    """Global configurable class for shared config
+
+    Usefull for display data priority that might be use by many trasnformers
+    """
+
+    display_data_priority = List(['html', 'pdf', 'svg', 'latex', 'png', 'jpg', 'jpeg' , 'text'],
+            config=True,
+              help= """
+                    An ordered list of prefered output type, the first
+                    encounterd will usually be used when converting discarding
+                    the others.
+                    """
+            )
+
+    def __init__(self, config=None, **kw):
+        super(GlobalConfigurable, self).__init__( config=config, **kw)

converters/jinja_filters.py

@@ -17,6 +17,8 b' from .utils import remove_ansi'
 from .utils import highlight, ansi2html
 from .utils import markdown2latex
 
+from converters.config import GlobalConfigurable
+
 from IPython.config.configurable import Configurable
 from IPython.utils.traitlets import List
 
@@ -24,24 +26,6 b' from IPython.utils.traitlets import List'
 # Class declarations
 #-----------------------------------------------------------------------------
 
-class GlobalConfigurable(Configurable):
-    """Global configurable class for shared config
-
-    Usefull for display data priority that might be use by many trasnformers
-    """
-    
-    display_data_priority = List(['html', 'pdf', 'svg', 'latex', 'png', 'jpg', 'jpeg' , 'text'],
-            config=True,
-              help= """
-                    An ordered list of prefered output type, the first
-                    encounterd will usually be used when converting discarding
-                    the others.
-                    """
-            )
-
-    def __init__(self, config=None, **kw):
-        super(GlobalConfigurable, self).__init__( config=config, **kw)
-
 class ConfigurableFilter(GlobalConfigurable):
     """Configurable Jinja Filter"""
 

converters/template.py

@@ -42,7 +42,7 b' from converters.jinja_filters import (python_comment, indent,'
         ansi2html, markdown2latex, escape_tex, FilterDataType)
 
 from converters.utils import  markdown2rst
-
+from converters.config import  GlobalConfigurable
 
 
 

converters/transformers.py

@@ -11,7 +11,9 b' from __future__ import print_function'
 from IPython.config.configurable import Configurable
 from IPython.utils.traitlets import Unicode, Bool, Dict, List
 
-class ConfigurableTransformers(Configurable):
+from converters.config import GlobalConfigurable
+
+class ConfigurableTransformers(GlobalConfigurable):
     """ A configurable transformer
 
     Inherit from this class if you wish to have configurability for your
@@ -145,14 +147,6 b' class ExtractFigureTransformer(ActivatableTransformer):'
             Usefull for latex where svg will be converted to pdf before inclusion
             """
             )
-    display_data_priority = List(['html', 'pdf', 'svg', 'latex', 'png', 'jpg', 'jpeg' , 'text'],
-            config=True,
-              help= """
-                    An ordered list of prefered output type, the first
-                    encounterd will usually be used when converting discarding
-                    the others.
-                    """
-            )
 
     key_format_map =  Dict({},
             config=True,

nbconvert2.py

@@ -30,7 +30,7 b' from IPython.utils.traitlets import Unicode, Bool'
 
 from converters.transformers import (ExtractFigureTransformer)
 
-from converters.jinja_filters import GlobalConfigurable
+from converters.config import GlobalConfigurable
 
 
 class NbconvertApp(Application):