diff --git a/pylons_app/lib/auth.py b/pylons_app/lib/auth.py
--- a/pylons_app/lib/auth.py
+++ b/pylons_app/lib/auth.py
@@ -36,7 +36,6 @@ def admin_auth(username, password):
 def authfunc(environ, username, password):
     sa = meta.Session
     password_crypt = get_crypt_password(password)
-    
     try:
         user = sa.query(Users).filter(Users.username == username).one()
     except (NoResultFound, MultipleResultsFound, OperationalError) as e:
diff --git a/pylons_app/lib/utils.py b/pylons_app/lib/utils.py
--- a/pylons_app/lib/utils.py
+++ b/pylons_app/lib/utils.py
@@ -1,8 +1,16 @@
    
 def get_repo_slug(request):
     path_info = request.environ.get('PATH_INFO')
-    uri_lst = path_info.split('/')
-    print uri_lst
-    print 'len', len(uri_lst)    
+    uri_lst = path_info.split('/')   
     repo_name = uri_lst[1]
     return repo_name
+
+def is_mercurial(environ):
+    """
+    Returns True if request's target is mercurial server - header
+    ``HTTP_ACCEPT`` of such request would start with ``application/mercurial``.
+    """
+    http_accept = environ.get('HTTP_ACCEPT')
+    if http_accept and http_accept.startswith('application/mercurial'):
+        return True
+    return False