diff --git a/converters/transformers.py b/converters/transformers.py
index 3ddc3fa..770700b 100755
--- a/converters/transformers.py
+++ b/converters/transformers.py
@@ -82,8 +82,7 @@ def coalesce_streams(cell, other, count):
 
     TODO: handle \r deletion
     """
-
-    outputs = cell.get('outputs', None)
+    outputs = cell.get('outputs', [])
     if not outputs:
         return cell, other
     new_outputs = []
@@ -102,7 +101,6 @@ def coalesce_streams(cell, other, count):
     return cell, other
 
 
-# todo, make the key part configurable.
 
 class ExtractFigureTransformer(ActivatableTransformer):
 
@@ -125,9 +123,12 @@ class ExtractFigureTransformer(ActivatableTransformer):
             config=True,
             )
 
+    figname_format_map =  Dict({},
+            config=True,
+            )
 
     #to do change this to .format {} syntax
-    default_key_tpl = Unicode('_fig_%02i.%s', config=True)
+    default_key_tpl = Unicode('_fig_{count:02d}.{ext}', config=True)
 
     def _get_ext(self, ext):
         if ext in self.extra_ext_map :
@@ -137,11 +138,13 @@ class ExtractFigureTransformer(ActivatableTransformer):
     def _new_figure(self, data, fmt, count):
         """Create a new figure file in the given format.
 
-        Returns a path relative to the input file.
         """
-        tpl = self.key_format_map.get(fmt,self.default_key_tpl) 
-        figname = tpl % (count, self._get_ext(fmt))
-        key     = tpl % (count, fmt)
+        tplf = self.figname_format_map.get(fmt,self.default_key_tpl) 
+        tplk = self.key_format_map.get(fmt,self.default_key_tpl)
+        
+        # option to pass the hash as data ?
+        figname = tplf.format(count=count, ext=self._get_ext(fmt))
+        key     = tplk.format(count=count, ext=self._get_ext(fmt))
 
         # Binary files are base64-encoded, SVG is already XML
         if fmt in ('png', 'jpg', 'pdf'):
diff --git a/tests/template_ref/00_notebook_tour_orig.html b/tests/template_ref/00_notebook_tour_orig.html
index 8e858ec..e8a68aa 100644
--- a/tests/template_ref/00_notebook_tour_orig.html
+++ b/tests/template_ref/00_notebook_tour_orig.html
@@ -1797,42 +1797,7 @@ it will automatically invoke a pager at the bottom of the screen:</p>
 <div class="hbox output_area">
 <div class="prompt"></div>
 <div class="box-flex1 output_subarea output_stream output_stdout">
-<pre>0 </pre>
-</div>
-</div><div class="hbox output_area">
-<div class="prompt"></div>
-<div class="box-flex1 output_subarea output_stream output_stdout">
-<pre>1 </pre>
-</div>
-</div><div class="hbox output_area">
-<div class="prompt"></div>
-<div class="box-flex1 output_subarea output_stream output_stdout">
-<pre>2 </pre>
-</div>
-</div><div class="hbox output_area">
-<div class="prompt"></div>
-<div class="box-flex1 output_subarea output_stream output_stdout">
-<pre>3 </pre>
-</div>
-</div><div class="hbox output_area">
-<div class="prompt"></div>
-<div class="box-flex1 output_subarea output_stream output_stdout">
-<pre>4 </pre>
-</div>
-</div><div class="hbox output_area">
-<div class="prompt"></div>
-<div class="box-flex1 output_subarea output_stream output_stdout">
-<pre>5 </pre>
-</div>
-</div><div class="hbox output_area">
-<div class="prompt"></div>
-<div class="box-flex1 output_subarea output_stream output_stdout">
-<pre>6 </pre>
-</div>
-</div><div class="hbox output_area">
-<div class="prompt"></div>
-<div class="box-flex1 output_subarea output_stream output_stdout">
-<pre>7
+<pre>0 1 2 3 4 5 6 7
 </pre>
 </div>
 </div>
@@ -4303,4 +4268,4 @@ X07vG9Z4QUTEBQ4dOkRpaSklJSVnnQPx/xV9BfkfDyZLAAAAAElFTkSuQmCC
 </div>
 </div>
 </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/tests/template_ref/00_notebook_tour_orig.rst b/tests/template_ref/00_notebook_tour_orig.rst
index aa558bf..0c198f6 100644
--- a/tests/template_ref/00_notebook_tour_orig.rst
+++ b/tests/template_ref/00_notebook_tour_orig.rst
@@ -167,36 +167,7 @@ In[19]:
 
 .. parsed-literal::
 
-    0 
-
-.. parsed-literal::
-
-    1 
-
-.. parsed-literal::
-
-    2 
-
-.. parsed-literal::
-
-    3 
-
-.. parsed-literal::
-
-    4 
-
-.. parsed-literal::
-
-    5 
-
-.. parsed-literal::
-
-    6 
-
-.. parsed-literal::
-
-    7
-
+    0 1 2 3 4 5 6 7
 Clean crash and restart
 -----------------------
 
diff --git a/tests/template_ref/00_notebook_tour_orig.tex b/tests/template_ref/00_notebook_tour_orig.tex
index 3608916..704bc01 100644
--- a/tests/template_ref/00_notebook_tour_orig.tex
+++ b/tests/template_ref/00_notebook_tour_orig.tex
@@ -316,36 +316,7 @@ for i in range(8):
 \begin{codeoutput}
 
 \begin{verbatim}
-0 
-\end{verbatim}
-
-\begin{verbatim}
-1 
-\end{verbatim}
-
-\begin{verbatim}
-2 
-\end{verbatim}
-
-\begin{verbatim}
-3 
-\end{verbatim}
-
-\begin{verbatim}
-4 
-\end{verbatim}
-
-\begin{verbatim}
-5 
-\end{verbatim}
-
-\begin{verbatim}
-6 
-\end{verbatim}
-
-\begin{verbatim}
-7
-
+0 1 2 3 4 5 6 7
 \end{verbatim}
 
 \end{codeoutput}