Change name of utils.open function to pelican_open and refactor this change across project.

pelican/utils.py

@@ -6,7 +6,7 @@ import shutil
 import logging
 from collections import defaultdict
 
-from codecs import open as _open
+from codecs import open
 from datetime import datetime
 from itertools import groupby
 from jinja2 import Markup
@@ -14,6 +14,7 @@ from operator import attrgetter
 
 logger = logging.getLogger(__name__)
 
+
 class NoFilesError(Exception):
     pass
 
@@ -37,9 +38,9 @@ def get_date(string):
     raise ValueError("'%s' is not a valid date" % string)
 
 
-def open(filename):
+def pelican_open(filename):
     """Open a file and return it's content"""
-    return _open(filename, encoding='utf-8').read()
+    return open(filename, encoding='utf-8').read()
 
 
 def slugify(value):