Mercurial > hg

changeset 26332:66221730d372

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templater: remove a mutable default argument Mutable default arguments are know to the state of California to cause bugs.
author Pierre-Yves David <pierre-yves.david@fb.com>
date Thu, 24 Sep 2015 01:06:10 -0700
parents 2c6a741bf05e
children 727d57e94cda
files mercurial/templater.py
diffstat 1 files changed, 3 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/templater.py	Thu Sep 24 01:05:21 2015 -0700
+++ b/mercurial/templater.py	Thu Sep 24 01:06:10 2015 -0700
@@ -833,12 +833,14 @@
 
 class templater(object):
 
-    def __init__(self, mapfile, filters={}, defaults={}, cache={},
+    def __init__(self, mapfile, filters=None, defaults={}, cache={},
                  minchunk=1024, maxchunk=65536):
         '''set up template engine.
         mapfile is name of file to read map definitions from.
         filters is dict of functions. each transforms a value into another.
         defaults is dict of default map definitions.'''
+        if filters is None:
+            filters = {}
         self.mapfile = mapfile or 'template'
         self.cache = cache.copy()
         self.map = {}