Adding pystache to third_party

third_party/pystache/src/template_spec.py

Index: third_party/pystache/src/template_spec.py
diff --git a/third_party/pystache/src/template_spec.py b/third_party/pystache/src/template_spec.py
new file mode 100644
index 0000000000000000000000000000000000000000..9e9f454c19d506220b470d4184c8835f91457344
--- /dev/null
+++ b/third_party/pystache/src/template_spec.py
@@ -0,0 +1,53 @@
+# coding: utf-8
+
+"""
+Provides a class to customize template information on a per-view basis.
+
+To customize template properties for a particular view, create that view
+from a class that subclasses TemplateSpec.  The "spec" in TemplateSpec
+stands for "special" or "specified" template information.
+
+"""
+
+class TemplateSpec(object):
+
+    """
+    A mixin or interface for specifying custom template information.
+
+    The "spec" in TemplateSpec can be taken to mean that the template
+    information is either "specified" or "special."
+
+    A view should subclass this class only if customized template loading
+    is needed.  The following attributes allow one to customize/override
+    template information on a per view basis.  A None value means to use
+    default behavior for that value and perform no customization.  All
+    attributes are initialized to None.
+
+    Attributes:
+
+      template: the template as a string.
+
+      template_encoding: the encoding used by the template.
+
+      template_extension: the template file extension.  Defaults to "mustache".
+        Pass False for no extension (i.e. extensionless template files).
+
+      template_name: the name of the template.
+
+      template_path: absolute path to the template.
+
+      template_rel_directory: the directory containing the template file,
+        relative to the directory containing the module defining the class.
+
+      template_rel_path: the path to the template file, relative to the
+        directory containing the module defining the class.
+
+    """
+
+    template = None
+    template_encoding = None
+    template_extension = None
+    template_name = None
+    template_path = None
+    template_rel_directory = None
+    template_rel_path = None