Add blueprint groups + nesting

sanic/app.py

@@ -372,10 +372,14 @@ class Sanic:
     def blueprint(self, blueprint, **options):
         """Register a blueprint on the application.
 
-        :param blueprint: Blueprint object
+        :param blueprint: Blueprint object or (list, tuple) thereof
         :param options: option dictionary with blueprint defaults
         :return: Nothing
         """
+        if isinstance(blueprint, (list, tuple)):
+            for item in blueprint:
+                self.blueprint(item, **options)
+            return
         if blueprint.name in self.blueprints:
             assert self.blueprints[blueprint.name] is blueprint, \
                 'A blueprint with the name "%s" is already registered.  ' \

sanic/blueprints.py

@@ -14,7 +14,6 @@ FutureStatic = namedtuple('Route',
 
 
 class Blueprint:
-
     def __init__(self, name,
                  url_prefix=None,
                  host=None, version=None,
@@ -38,6 +37,27 @@ class Blueprint:
         self.version = version
         self.strict_slashes = strict_slashes
 
+    @staticmethod
+    def group(*blueprints, url_prefix=''):
+        """Create a list of blueprints, optionally
+        grouping them under a general URL prefix.
+
+        :param blueprints: blueprints to be registered as a group
+        :param url_prefix: URL route to be prepended to all sub-prefixes
+        """
+        def chain(nested):
+            """itertools.chain() but leaves strings untouched"""
+            for i in nested:
+                if isinstance(i, (list, tuple)):
+                    yield from chain(i)
+                else:
+                    yield i
+        bps = []
+        for bp in chain(blueprints):
+            bp.url_prefix = url_prefix + bp.url_prefix
+            bps.append(bp)
+        return bps
+
     def register(self, app, options):
         """Register the blueprint to the sanic app."""