From 2bf1b2f11cf65ae39a1e0e8bc51937443bcaa033 Mon Sep 17 00:00:00 2001
From: Michael Merickel <michael@merickel.org>
Date: Wed, 18 Sep 2019 20:03:06 -0500
Subject: modify the default scan categories to be limited to only 'pyramid'

---
 src/pyramid/config/__init__.py | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

(limited to 'src')

diff --git a/src/pyramid/config/__init__.py b/src/pyramid/config/__init__.py
index 072b654c4..890d543a4 100644
--- a/src/pyramid/config/__init__.py
+++ b/src/pyramid/config/__init__.py
@@ -805,7 +805,12 @@ class Configurator(
 
     # this is *not* an action method (uses caller_package)
     def scan(
-        self, package=None, categories=None, onerror=None, ignore=None, **kw
+        self,
+        package=None,
+        categories=('pyramid',),
+        onerror=None,
+        ignore=None,
+        **kw
     ):
         """Scan a Python package and any of its subpackages for objects
         marked with :term:`configuration decoration` such as
@@ -820,12 +825,12 @@ class Configurator(
         The ``categories`` argument, if provided, should be the
         :term:`Venusian` 'scan categories' to use during scanning.  Providing
         this argument is not often necessary; specifying scan categories is
-        an extremely advanced usage.  By default, ``categories`` is ``None``
-        which will execute *all* Venusian decorator callbacks including
-        :app:`Pyramid`-related decorators such as
-        :class:`pyramid.view.view_config`.  See the :term:`Venusian`
-        documentation for more information about limiting a scan by using an
-        explicit set of categories.
+        an extremely advanced usage.  By default, ``categories`` is
+        ``['pyramid']`` which will execute only :app:`Pyramid`-related Venusian
+        decorator callbacks such as from :class:`pyramid.view.view_config`.
+        See the :term:`Venusian` documentation for more information about
+        limiting a scan by using an explicit set of categories. Pass ``None``
+        to pick up *all* Venusian decorators.
 
         The ``onerror`` argument, if provided, should be a Venusian
         ``onerror`` callback function.  The onerror function is passed to
@@ -863,6 +868,10 @@ class Configurator(
         .. versionadded:: 1.3
            The ``ignore`` argument.
 
+        .. versionchanged:: 2.0
+           The ``categories`` argument now defaults to ``['pyramid']`` instead
+           of ``None`` to control which decorator callbacks are executed.
+
         """
         package = self.maybe_dotted(package)
         if package is None:  # pragma: no cover
-- 
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