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Made use of `itertools.cycle` for the `cycle` template tag.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@6636 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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commit 2a48fc5007b9fc04f6483ddf022d504bd11e0826 1 parent 5997cb8
@gdub gdub authored
Showing with 4 additions and 5 deletions.
  1. +4 −5 django/template/defaulttags.py
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9 django/template/defaulttags.py
@@ -1,5 +1,7 @@
"Default tags used by the template system, available to all templates."
+from itertools import cycle as itertools_cycle
+
from django.template import Node, NodeList, Template, Context, Variable
from django.template import TemplateSyntaxError, VariableDoesNotExist, BLOCK_TAG_START, BLOCK_TAG_END, VARIABLE_TAG_START, VARIABLE_TAG_END, SINGLE_BRACE_START, SINGLE_BRACE_END, COMMENT_TAG_START, COMMENT_TAG_END
from django.template import get_library, Library, InvalidTemplateLibrary
@@ -22,14 +24,11 @@ def render(self, context):
class CycleNode(Node):
def __init__(self, cyclevars, variable_name=None):
- self.cyclevars = cyclevars
- self.cyclevars_len = len(cyclevars)
- self.counter = -1
+ self.cycle_iter = itertools_cycle(cyclevars)
self.variable_name = variable_name
def render(self, context):
- self.counter += 1
- value = self.cyclevars[self.counter % self.cyclevars_len]
+ value = self.cycle_iter.next()
value = Variable(value).resolve(context)
if self.variable_name:
context[self.variable_name] = value
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