Avoid coverage reporting for rendering engine configuration when engi…

…ne is not installed

tg/renderers/genshi.py

@@ -9,14 +9,14 @@
 
 try:
     import genshi
-except ImportError:
+except ImportError:  # pragma: no cover
     genshi = None
 
 if genshi is not None:
     from genshi.template import TemplateLoader as GenshiTemplateLoader
     from genshi.filters import Translator
     from genshi import HTML, XML
-else:
+else:  # pragma: no cover
     class GenshiTemplateLoader(object): pass
 
 
@@ -61,7 +61,7 @@ def create(cls, config, app_globals):
         filter, template loader
 
         """
-        if genshi is None:
+        if genshi is None:  # pragma: no cover
             # Genshi not available
             return None
 

tg/renderers/jinja.py

@@ -8,15 +8,15 @@
 
 try:
     import jinja2
-except ImportError:
+except ImportError:  # pragma: no cover
     jinja2 = None
 
 if jinja2 is not None:
     from jinja2.loaders import FileSystemLoader
     from jinja2 import ChoiceLoader, Environment
     from jinja2.filters import FILTERS
     from jinja2.exceptions import TemplateNotFound
-else:
+else:  # pragma: no cover
     class FileSystemLoader(object): pass
 
 __all__ = ['JinjaRenderer']
@@ -28,7 +28,7 @@ class JinjaRenderer(RendererFactory):
     @classmethod
     def create(cls, config, app_globals):
         """Setup a renderer and loader for Jinja2 templates."""
-        if jinja2 is None:
+        if jinja2 is None:  # pragma: no cover
             return None
 
         if config.get('use_dotted_templatenames', True):

tg/renderers/kajiki.py

@@ -6,12 +6,12 @@
 
 try:
     import kajiki
-except ImportError:
+except ImportError:  # pragma: no cover
     kajiki = None
 
 if kajiki is not None:
     from kajiki.loader import FileLoader
-else:
+else:  # pragma: no cover
     class FileLoader(object): pass
 
 __all__ = ['KajikiRenderer']
@@ -23,7 +23,7 @@ class KajikiRenderer(RendererFactory):
     @classmethod
     def create(cls, config, app_globals):
         """Setup a renderer and loader for the Kajiki engine."""
-        if kajiki is None:
+        if kajiki is None:  # pragma: no cover
             return None
 
         loader = KajikiTemplateLoader(config.paths.templates[0],

tg/renderers/mako.py

@@ -16,7 +16,7 @@
 
 try:
     import mako
-except ImportError:
+except ImportError:  # pragma: no cover
     mako = None
 
 if mako is not None:
@@ -37,7 +37,7 @@ def create(cls, config, app_globals):
         """
         Setup a renderer and loader for mako templates.
         """
-        if mako is None:
+        if mako is None:  # pragma: no cover
             return None
 
         use_dotted_templatenames = config.get('use_dotted_templatenames', True)