diff --git a/rhodecode/controllers/pullrequests.py b/rhodecode/controllers/pullrequests.py
--- a/rhodecode/controllers/pullrequests.py
+++ b/rhodecode/controllers/pullrequests.py
@@ -33,7 +33,6 @@ from itertools import groupby
 from pylons import request, response, session, tmpl_context as c, url
 from pylons.controllers.util import abort, redirect
 from pylons.i18n.translation import _
-from pylons.decorators import jsonify
 
 from rhodecode.lib.compat import json
 from rhodecode.lib.base import BaseRepoController, render
@@ -41,7 +40,10 @@ from rhodecode.lib.auth import LoginRequ
     NotAnonymous
 from rhodecode.lib import helpers as h
 from rhodecode.lib import diffs
-from rhodecode.lib.utils import action_logger
+from rhodecode.lib.utils import action_logger, jsonify
+from rhodecode.lib.vcs.exceptions import EmptyRepositoryError
+from rhodecode.lib.vcs.backends.base import EmptyChangeset
+from rhodecode.lib.diffs import LimitedDiffContainer
 from rhodecode.model.db import User, PullRequest, ChangesetStatus,\
     ChangesetComment
 from rhodecode.model.pull_request import PullRequestModel
@@ -50,10 +52,6 @@ from rhodecode.model.repo import RepoMod
 from rhodecode.model.comment import ChangesetCommentsModel
 from rhodecode.model.changeset_status import ChangesetStatusModel
 from rhodecode.model.forms import PullRequestForm
-from rhodecode.lib.vcs.exceptions import EmptyRepositoryError
-from rhodecode.lib.vcs.backends.base import EmptyChangeset
-from rhodecode.lib.diffs import LimitedDiffContainer
-from rhodecode.lib.utils2 import str2bool
 
 log = logging.getLogger(__name__)