jinja2: add many built-in functions from Python

CHANGES.txt

+2.6 (2014-11-26)
+================
+
+ * jinja2: add many built-in functions from Python.
+
 2.5 (2013-08-07)
-======================
+================
 
  * Fix file import with Jinja2 >= 2.7
 
 2.4.3 (2013-08-02)
-======================
+==================
 
  * jinja2: add support for inline templates.
 

setup.py

 from setuptools import setup, find_packages
 import os
 
-version = '2.5'
+version = '2.6'
 name = 'slapos.recipe.template'
 long_description = open("README.txt").read() + "\n" + \
     open(os.path.join('slapos', 'recipe',

slapos/recipe/template/jinja2_template.py

@@ -32,6 +32,12 @@ from jinja2 import Environment, StrictUndefined, \
     BaseLoader, TemplateNotFound, PrefixLoader
 from contextlib import contextmanager
 
+DEFAULT_CONTEXT = {x.__name__: x for x in (
+  abs, all, any, bin, bool, callable, chr, complex, dict, divmod,
+  enumerate, filter, float, format, frozenset, hex, int,
+  isinstance, iter, len, list, map, max, min, next, oct, ord,
+  pow, repr, reversed, round, set, sorted, str, sum, tuple, zip)}
+
 _buildout_safe_dumps = getattr(zc.buildout.buildout, 'dumps', None)
 DUMPS_KEY = 'dumps'
 DEFAULT_IMPORT_DELIMITER = '/'
@@ -166,7 +172,7 @@ class Recipe(object):
         self.rendered = options['rendered']
         self.extension_list = [x for x in (y.strip()
             for y in options.get('extensions', '').split()) if x]
-        self.context = context = {}
+        self.context = context = DEFAULT_CONTEXT.copy()
         if _buildout_safe_dumps is not None:
             context[DUMPS_KEY] = _buildout_safe_dumps
         for line in options.get('context', '').splitlines(False):