From eb3ac8e33b0fe516fb6cf8d27061eff6dec1afc2 Mon Sep 17 00:00:00 2001
From: Chris McDonough <chrism@plope.com>
Date: Mon, 6 Apr 2015 05:32:47 -0400
Subject: break out _call_view into separate importable callable for use in
 scripts

---
 pyramid/router.py | 52 +++++++++++++++++++++-------------------------------
 pyramid/view.py   | 26 ++++++++++++++++++++++++++
 2 files changed, 47 insertions(+), 31 deletions(-)

diff --git a/pyramid/router.py b/pyramid/router.py
index 9ce5d2487..4054ef52e 100644
--- a/pyramid/router.py
+++ b/pyramid/router.py
@@ -22,10 +22,9 @@ from pyramid.events import (
     NewResponse,
     )
 
-from pyramid.exceptions import PredicateMismatch
 from pyramid.httpexceptions import HTTPNotFound
 from pyramid.request import Request
-from pyramid.view import _find_views
+from pyramid.view import _call_view
 from pyramid.request import apply_request_extensions
 from pyramid.threadlocal import manager
 
@@ -138,40 +137,31 @@ class Router(object):
 
         # find a view callable
         context_iface = providedBy(context)
-        view_callables = _find_views(
+        response = _call_view(
             registry,
-            request.request_iface,
+            request,
+            context,
             context_iface,
-            view_name,
+            view_name
             )
 
-        pme = None
+        if response is None:
+            if self.debug_notfound:
+                msg = (
+                    'debug_notfound of url %s; path_info: %r, '
+                    'context: %r, view_name: %r, subpath: %r, '
+                    'traversed: %r, root: %r, vroot: %r, '
+                    'vroot_path: %r' % (
+                        request.url, request.path_info, context,
+                        view_name, subpath, traversed, root, vroot,
+                        vroot_path)
+                    )
+                logger and logger.debug(msg)
+            else:
+                msg = request.path_info
+            raise HTTPNotFound(msg)
 
-        for view_callable in view_callables:
-            # look for views that meet the predicate criteria
-            try:
-                response = view_callable(context, request)
-                return response
-            except PredicateMismatch as _pme:
-                pme = _pme
-
-        if pme is not None:
-            raise pme
-
-        if self.debug_notfound:
-            msg = (
-                'debug_notfound of url %s; path_info: %r, '
-                'context: %r, view_name: %r, subpath: %r, '
-                'traversed: %r, root: %r, vroot: %r, '
-                'vroot_path: %r' % (
-                    request.url, request.path_info, context,
-                    view_name, subpath, traversed, root, vroot,
-                    vroot_path)
-                )
-            logger and logger.debug(msg)
-        else:
-            msg = request.path_info
-        raise HTTPNotFound(msg)
+        return response
 
     def invoke_subrequest(self, request, use_tweens=False):
         """Obtain a response object from the Pyramid application based on
diff --git a/pyramid/view.py b/pyramid/view.py
index 127122a36..8565cd875 100644
--- a/pyramid/view.py
+++ b/pyramid/view.py
@@ -16,6 +16,8 @@ from pyramid.compat import (
     decode_path_info,
     )
 
+from pyramid.exceptions import PredicateMismatch
+
 from pyramid.httpexceptions import (
     HTTPFound,
     default_exceptionresponse_view,
@@ -446,3 +448,27 @@ def _find_views(registry, request_iface, context_iface, view_name):
             with registry._lock:
                 cache[(request_iface, context_iface, view_name)] = views
     return views
+
+def _call_view(registry, request, context, context_iface, view_name):
+    view_callables = _find_views(
+        registry,
+        request.request_iface,
+        context_iface,
+        view_name,
+        )
+
+    pme = None
+    response = None
+
+    for view_callable in view_callables:
+        # look for views that meet the predicate criteria
+        try:
+            response = view_callable(context, request)
+            return response
+        except PredicateMismatch as _pme:
+            pme = _pme
+
+    if pme is not None:
+        raise pme
+
+    return response
-- 
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