Added a defaults module with default DECODE_ERRORS and TEMPLATE_EXTENSION values.

pystache/defaults.py

+# coding: utf-8
+
+"""
+This module provides a central location for defining default behavior.
+
+"""
+
+# How to handle encoding errors when decoding strings from str to unicode.
+#
+# This value is passed as the "errors" argument to Python's built-in
+# unicode() function:
+#
+#   http://docs.python.org/library/functions.html#unicode
+#
+DECODE_ERRORS = 'strict'
+
+# The default template extension.
+TEMPLATE_EXTENSION = 'mustache'

pystache/loader.py

@@ -10,8 +10,7 @@ from __future__ import with_statement
 import os
 import sys
 
-
-DEFAULT_DECODE_ERRORS = 'strict'
+from . import defaults
 
 
 class Loader(object):
@@ -29,12 +28,12 @@ class Loader(object):
             sys.getdefaultencoding().
 
           decode_errors: the string to pass as the errors argument to the
-            built-in function unicode() when converting file contents to
-            unicode.  Defaults to "strict".
+            built-in function unicode() when converting str strings to
+            unicode.  Defaults to the package default.
 
         """
         if decode_errors is None:
-            decode_errors = DEFAULT_DECODE_ERRORS
+            decode_errors = defaults.DECODE_ERRORS
 
         if encoding is None:
             encoding = sys.getdefaultencoding()

pystache/locator.py

@@ -9,8 +9,7 @@ import os
 import re
 import sys
 
-
-DEFAULT_EXTENSION = 'mustache'
+from . import defaults
 
 
 class Locator(object):
@@ -21,12 +20,13 @@ class Locator(object):
 
         Arguments:
 
-          extension: the template file extension.  Defaults to "mustache".
-            Pass False for no extension (i.e. extensionless template files).
+          extension: the template file extension.  Pass False for no
+            extension (i.e. to use extensionless template files).
+            Defaults to the package default.
 
         """
         if extension is None:
-            extension = DEFAULT_EXTENSION
+            extension = defaults.TEMPLATE_EXTENSION
 
         self.template_extension = extension
 

pystache/renderer.py

@@ -9,10 +9,10 @@ import cgi
 import os
 import sys
 
+from . import defaults
 from .context import Context
 # TODO: remove this alias.
 from .loader import Loader as Reader
-from .locator import DEFAULT_EXTENSION
 from .locator import Locator
 from .renderengine import RenderEngine
 
@@ -96,8 +96,9 @@ class Renderer(object):
             current working directory.  If given a string, the string is
             interpreted as a single directory.
 
-          file_extension: the template file extension.  Defaults to "mustache".
-            Pass False for no extension (i.e. for extensionless files).
+          file_extension: the template file extension.  Pass False for no
+            extension (i.e. to use extensionless template files).
+            Defaults to the package default.
 
         """
         if default_encoding is None:
@@ -111,7 +112,7 @@ class Renderer(object):
             file_encoding = default_encoding
 
         if file_extension is None:
-            file_extension = DEFAULT_EXTENSION
+            file_extension = defaults.TEMPLATE_EXTENSION
 
         if search_dirs is None:
             search_dirs = os.curdir  # i.e. "."