From 01b4c069162bb332d2c3cef6e9d324abebe4317c Mon Sep 17 00:00:00 2001
From: Alexander Artemenko <svetlyak.40wt@gmail.com>
Date: Sun, 26 Dec 2010 23:59:30 +0300
Subject: [PATCH] Custom bicycle 'update_dict' was replaced with
 'collections.defaultdict'.

---
 pelican/generators.py | 10 +++++-----
 pelican/utils.py      | 11 -----------
 2 files changed, 5 insertions(+), 16 deletions(-)

diff --git a/pelican/generators.py b/pelican/generators.py
index 88ee6919..18dba81a 100755
--- a/pelican/generators.py
+++ b/pelican/generators.py
@@ -8,7 +8,7 @@ import os
 from jinja2 import Environment, FileSystemLoader
 from jinja2.exceptions import TemplateNotFound
 
-from pelican.utils import update_dict, copytree, process_translations, open
+from pelican.utils import copytree, process_translations, open
 from pelican.contents import Article, Page, is_valid_content
 from pelican.readers import read_file
 
@@ -81,8 +81,8 @@ class ArticlesGenerator(Generator):
         self.articles = [] # only articles in default language
         self.translations = []
         self.dates = {}
-        self.tags = {}
-        self.categories = {}
+        self.tags = defaultdict(list)
+        self.categories = defaultdict(list)
         super(ArticlesGenerator, self).__init__(*args, **kwargs)
 
     def generate_feeds(self, writer):
@@ -178,14 +178,14 @@ class ArticlesGenerator(Generator):
 
             if hasattr(article, 'tags'):
                 for tag in article.tags:
-                    update_dict(self.tags, tag, article)
+                    self.tags[tag].append(article)
             all_articles.append(article)
 
         self.articles, self.translations = process_translations(all_articles)
 
         for article in self.articles:
             # only main articles are listed in categories, not translations
-            update_dict(self.categories, article.category, article)
+            self.categories[article.category].append(article)
 
 
         # sort the articles by date
diff --git a/pelican/utils.py b/pelican/utils.py
index fe7ab009..9641b078 100644
--- a/pelican/utils.py
+++ b/pelican/utils.py
@@ -7,17 +7,6 @@ from codecs import open as _open
 from itertools import groupby
 from operator import attrgetter
 
-def update_dict(mapping, key, value):
-    """Update a dict intenal list
-
-    :param mapping: the mapping to update
-    :param key: the key of the mapping to update.
-    :param value: the value to append to the list.
-    """
-    if key not in mapping:
-        mapping[key] = []
-    mapping[key].append(value)
-
 
 def get_date(string):
     """Return a datetime object from a string.