From a98425e4b43881f03167b0be3ac1829b84e0f3f9 2014-02-21 20:57:06
From: MinRK <benjaminrk@gmail.com>
Date: 2014-02-21 20:57:06
Subject: [PATCH] don't assume outputs have metadata

in nbconvert

some old notebooks do not have this key defined
---

diff --git a/IPython/nbconvert/templates/html/basic.tpl b/IPython/nbconvert/templates/html/basic.tpl
index 22647fb..9b8b76f 100644
--- a/IPython/nbconvert/templates/html/basic.tpl
+++ b/IPython/nbconvert/templates/html/basic.tpl
@@ -120,10 +120,10 @@ unknown type  {{ cell.type }}
 
 {% block data_png %}
 <img src="data:image/png;base64,{{ output.png }}"
-{%- if 'width' in output.metadata.get('png', {}) %}
+{%- if 'metadata' in output and 'width' in output.metadata.get('png', {}) %}
 width={{output.metadata['png']['width']}}
 {%- endif %}
-{%- if 'height' in output.metadata.get('png', {}) %}
+{%- if 'metadata' in output and 'height' in output.metadata.get('png', {}) %}
 height={{output.metadata['png']['height']}}
 {%- endif %}
 >
@@ -131,10 +131,10 @@ height={{output.metadata['png']['height']}}
 
 {% block data_jpg %}
 <img src="data:image/jpeg;base64,{{ output.jpeg }}"
-{%- if 'width' in output.metadata.get('jpeg', {}) %}
+{%- if 'metadata' in output and 'width' in output.metadata.get('jpeg', {}) %}
 width={{output.metadata['jpeg']['width']}}
 {%- endif %}
-{%- if 'height' in output.metadata.get('jpeg', {}) %}
+{%- if 'metadata' in output and 'height' in output.metadata.get('jpeg', {}) %}
 height={{output.metadata['jpeg']['height']}}
 {%- endif %}
 >