Add Python 3 support.

.travis.yml

@@ -1,11 +1,16 @@
 language: python
 python:
- - "2.6"
- - "2.7"
+  - "2.6"
+  - "2.7"
+  - "3.3"
 env:
- - DJANGO_VERSION=1.4.5
- - DJANGO_VERSION=1.5.1
+  - DJANGO_VERSION=1.4.6
+  - DJANGO_VERSION=1.5.2
 install:
- - pip install -q Django==${DJANGO_VERSION} --use-mirrors
- - pip install -q -r requirements.txt --use-mirrors
-script: fab test
+  - pip install Django==${DJANGO_VERSION}
+  - pip install -r requirements.txt
+matrix:
+  exclude:
+    - python: "3.3"
+      env: DJANGO_VERSION=1.4.6
+script: python run_tests.py

CHANGELOG

@@ -1,6 +1,11 @@
 CHANGES
 =======
 
+v0.x.y
+------
+
+* Added Python 3 support.
+
 v0.6.2
 ------
 

README.rst

@@ -190,6 +190,11 @@ Usage::
 Testing
 -------
 
-Testing is handle via fabric::
+To run the test suite, you need to define ``DJANGO_SETTINGS_MODULE`` first::
 
-    fab test
+    $ export DJANGO_SETTINGS_MODULE="fake_settings"
+    $ nosetests
+
+or simply run::
+
+    $ python run_tests.py

docs/index.rst

@@ -154,9 +154,9 @@ could create a link if I knew how to do that.
 
 The other method uses Jinja's ``trans`` tag::
 
-        {% trans user=review.user|user_link, date=review.created|datetime %}
-          by {{ user }} on {{ date }}
-        {% endtrans %}
+    {% trans user=review.user|user_link, date=review.created|datetime %}
+      by {{ user }} on {{ date }}
+    {% endtrans %}
 
 ``trans`` is nice when you have a lot of text or want to inject some variables
 directly.  Both methods are useful, pick the one that makes you happy.
@@ -174,6 +174,11 @@ not recognize.
 Testing
 -------
 
-Testing is handle via fabric::
+To run the test suite, you need to define ``DJANGO_SETTINGS_MODULE`` first::
 
-    fab test
+    $ export DJANGO_SETTINGS_MODULE="fake_settings"
+    $ nosetests
+
+or simply run::
+
+    $ python run_tests.py

fabfile.py

@@ -1,40 +0,0 @@
-"""
-Creating standalone Django apps is a PITA because you're not in a project, so
-you don't have a settings.py file.  I can never remember to define
-DJANGO_SETTINGS_MODULE, so I run these commands which get the right env
-automatically.
-"""
-import functools
-import os
-
-from fabric.api import local, cd, env
-from fabric.contrib.project import rsync_project
-
-NAME = os.path.basename(os.path.dirname(__file__))
-ROOT = os.path.abspath(os.path.dirname(__file__))
-
-os.environ['DJANGO_SETTINGS_MODULE'] = 'fake_settings'
-os.environ['PYTHONPATH'] = os.pathsep.join([ROOT,
-                                            os.path.join(ROOT, 'examples')])
-
-env.hosts = ['jbalogh.me']
-
-local = functools.partial(local, capture=False)
-
-
-def doc(kind='html'):
-    with cd('docs'):
-        local('make clean %s' % kind)
-
-def shell():
-    local('django-admin.py shell')
-
-def test():
-    local('nosetests')
-
-def cover():
-    local('nosetests --with-coverage')
-
-def updoc():
-    doc('dirhtml')
-    rsync_project('p/%s' % NAME, 'docs/_build/dirhtml/', delete=True)

jingo/__init__.py

@@ -1,4 +1,7 @@
 """Adapter for using Jinja2 with Django."""
+
+from __future__ import unicode_literals
+
 import functools
 import imp
 import logging

jingo/helpers.py

@@ -1,6 +1,14 @@
+# coding: utf-8
+
+from __future__ import unicode_literals, print_function
+
+from django.utils import six
 from django.utils.translation import ugettext as _
 from django.template.defaulttags import CsrfTokenNode
-from django.utils.encoding import smart_unicode
+try:
+    from django.utils.encoding import smart_unicode as smart_text
+except ImportError:
+    from django.utils.encoding import smart_text
 from django.core.urlresolvers import reverse
 
 import jinja2
@@ -23,7 +31,6 @@ def f(string, *args, **kwargs):
     >>> {{ "{0} arguments and {x} arguments"|f('positional', x='keyword') }}
     "positional arguments and keyword arguments"
     """
-    string = unicode(string)
     return string.format(*args, **kwargs)
 
 
@@ -32,12 +39,12 @@ def fe(string, *args, **kwargs):
     """Format a safe string with potentially unsafe arguments, then return a
     safe string."""
 
-    string = unicode(string)
+    string = six.text_type(string)
 
-    args = [jinja2.escape(smart_unicode(v)) for v in args]
+    args = [jinja2.escape(smart_text(v)) for v in args]
 
     for k in kwargs:
-        kwargs[k] = jinja2.escape(smart_unicode(kwargs[k]))
+        kwargs[k] = jinja2.escape(smart_text(kwargs[k]))
 
     return jinja2.Markup(string.format(*args, **kwargs))
 
@@ -54,8 +61,12 @@ def nl2br(string):
 def datetime(t, fmt=None):
     """Call ``datetime.strftime`` with the given format string."""
     if fmt is None:
-        fmt = _('%B %e, %Y')
-    return smart_unicode(t.strftime(fmt.encode('utf-8'))) if t else u''
+        fmt = _(u'%B %e, %Y')
+    if not six.PY3:
+        # The datetime.strftime function strictly does not
+        # support Unicode in Python 2 but is Unicode only in 3.x.
+        fmt = fmt.encode('utf-8')
+    return smart_text(t.strftime(fmt)) if t else ''
 
 
 @register.filter

jingo/monkey.py

@@ -21,9 +21,13 @@ from the nuggets project at
 https://github.com/mozilla/nuggets/blob/master/safe_django_forms.py
 
 """
+
+from __future__ import unicode_literals
+
 import django.utils.encoding
 import django.utils.html
 import django.utils.safestring
+from django.utils import six
 
 
 # This function gets directly imported within Django, so this change needs to
@@ -47,7 +51,7 @@ def __html__(self):
 
     Allows interoperability with other template engines.
     """
-    return unicode(self)
+    return six.text_type(self)
 
 
 # Django uses StrAndUnicode for classes like Form, BoundField, Widget which
@@ -57,7 +61,7 @@ class SafeStrAndUnicode(django.utils.encoding.StrAndUnicode):
     """A class whose __str__ and __html__ returns __unicode__."""
 
     def __html__(self):
-        return unicode(self)
+        return six.text_type(self)
 
 
 def patch():

jingo/tests/test_basics.py

@@ -1,8 +1,13 @@
+from __future__ import unicode_literals
+
 from django.shortcuts import render
 import jinja2
 
 from nose.tools import eq_
-from mock import Mock, patch, sentinel
+try:
+    from unittest.mock import Mock, patch, sentinel
+except ImportError:
+    from mock import Mock, patch, sentinel
 
 import jingo
 

jingo/tests/test_helpers.py

@@ -1,20 +1,23 @@
 # -*- coding: utf-8 -*-
 """Tests for the jingo's builtin helpers."""
+
+from __future__ import unicode_literals
+
 from datetime import datetime
 from collections import namedtuple
 
+from django.utils import six
 from jinja2 import Markup
-from mock import patch
+try:
+    from unittest.mock import patch
+except ImportError:
+    from mock import patch
 from nose.tools import eq_
 
-import jingo
 from jingo import helpers
 from jingo import register
 
-
-def render(s, context={}):
-    t = jingo.env.from_string(s)
-    return t.render(context)
+from .utils import htmleq_, render
 
 
 def test_f():
@@ -35,9 +38,9 @@ def test_fe_positional():
 
 
 def test_fe_unicode():
-    context = {'var': u'Français'}
+    context = {'var': 'Français'}
     template = '{{ "Speak {0}"|fe(var) }}'
-    eq_(u'Speak Français', render(template, context))
+    eq_('Speak Français', render(template, context))
 
 
 def test_fe_markup():
@@ -113,7 +116,7 @@ def test_field_attrs():
         def __str__(self):
             attrs = self.field.widget.attrs
             attr_str = ' '.join('%s="%s"' % (k, v)
-                                for (k, v) in attrs.iteritems())
+                                for (k, v) in six.iteritems(attrs))
             return Markup('<input %s />' % attr_str)
 
         def __html__(self):
@@ -122,7 +125,7 @@ def test_field_attrs():
     f = field()
     s = render('{{ field|field_attrs(class="bar",name="baz") }}',
                {'field': f})
-    eq_(s, '<input class="bar" name="baz" />')
+    htmleq_(s, '<input class="bar" name="baz" />')
 
 
 def test_url():
@@ -157,14 +160,15 @@ def test_custom_url(s):
 def test_filter_override():
     def f(s):
         return s.upper()
-    f.__name__ = 'a'
+    # See issue 7688: http://bugs.python.org/issue7688
+    f.__name__ = 'a' if six.PY3 else b'a'
     register.filter(f)
     s = render('{{ s|a }}', {'s': 'Str'})
     eq_(s, 'STR')
 
     def g(s):
         return s.lower()
-    g.__name__ = 'a'
+    g.__name__ = 'a' if six.PY3 else b'a'
     register.filter(override=False)(g)
     s = render('{{ s|a }}', {'s': 'Str'})
     eq_(s, 'STR')

jingo/tests/test_loader.py

@@ -1,34 +1,39 @@
+from __future__ import unicode_literals
+
 from django.shortcuts import render
 
 from nose.tools import eq_
-from mock import Mock
+try:
+    from unittest.mock import Mock
+except ImportError:
+    from mock import Mock
 
 
 def test_render():
     r = render(Mock(), 'jinja_app/test.html', {})
-    eq_(r.content, 'HELLO')
+    eq_(r.content, b'HELLO')
 
 
 def test_render_no_toplevel_override():
     r = render(Mock(), 'jinja_app/test_nonoverride.html', {})
-    eq_(r.content, 'HELLO')
+    eq_(r.content, b'HELLO')
 
 
 def test_render_toplevel_override():
     r = render(Mock(), 'jinja_app/test_override.html', {})
-    eq_(r.content, 'HELLO')
+    eq_(r.content, b'HELLO')
 
 
 def test_render_django():
     r = render(Mock(), 'django_app/test.html', {})
-    eq_(r.content, 'HELLO ...\n')
+    eq_(r.content, b'HELLO ...\n')
 
 
 def test_render_django_no_toplevel_override():
     r = render(Mock(), 'django_app/test_nonoverride.html', {})
-    eq_(r.content, 'HELLO ...\n')
+    eq_(r.content, b'HELLO ...\n')
 
 
 def test_render_django_toplevel_override():
     r = render(Mock(), 'django_app/test_override.html', {})
-    eq_(r.content, 'HELLO ...\n')
+    eq_(r.content, b'HELLO ...\n')

jingo/tests/test_monkey.py

@@ -1,11 +1,14 @@
+from __future__ import unicode_literals
+
 from django import forms
+from django.utils import six
 
 from jinja2 import escape
 from nose.tools import eq_
 
-import jingo
 import jingo.monkey
-from test_helpers import render
+
+from .utils import render
 
 
 class MyForm(forms.Form):
@@ -23,5 +26,5 @@ def test_monkey_patch():
     jingo.monkey.patch()
     eq_(html, render(t, context))
 
-    s = unicode(form['email'])
+    s = six.text_type(form['email'])
     eq_(s, render('{{ form.email }}', {'form': form}))

jingo/tests/test_views.py

@@ -1,6 +1,11 @@
+from __future__ import unicode_literals
+
 from django.utils import translation
 
-from mock import sentinel
+try:
+    from unittest.mock import sentinel
+except ImportError:
+    from mock import sentinel
 from nose.tools import eq_
 
 from jingo import get_env, render_to_string

jingo/tests/urls.py

@@ -1,3 +1,5 @@
+from __future__ import unicode_literals
+
 from django.conf.urls import patterns
 
 

jingo/tests/utils.py

@@ -0,0 +1,35 @@
+from django.test.html import HTMLParseError, parse_html
+from nose.tools import eq_
+
+from jingo import env
+
+
+def htmleq_(html1, html2, msg=None):
+    """
+    Asserts that two HTML snippets are semantically the same.
+    Whitespace in most cases is ignored, and attribute ordering is not
+    significant. The passed-in arguments must be valid HTML.
+
+    See ticket 16921: https://code.djangoproject.com/ticket/16921
+
+    """
+    dom1 = assert_and_parse_html(html1, msg,
+                                 'First argument is not valid HTML:')
+    dom2 = assert_and_parse_html(html2, msg,
+                                 'Second argument is not valid HTML:')
+
+    eq_(dom1, dom2)
+
+
+def assert_and_parse_html(html, user_msg, msg):
+    try:
+        dom = parse_html(html)
+    except HTMLParseError as e:
+        standard_msg = '%s\n%s\n%s' % (user_msg, msg, e.msg)
+        raise AssertionError(standard_msg)
+    return dom
+
+
+def render(s, context={}):
+    t = env.from_string(s)
+    return t.render(context)

requirements.txt

@@ -1,7 +1,6 @@
 # These are the reqs to build docs and run tests.
-Django==1.5.1
+Django==1.5.2
 sphinx
-jinja2
+jinja2==2.7
 nose
 mock
-fabric

run_tests.py

@@ -0,0 +1,13 @@
+import os
+
+import nose
+
+NAME = os.path.basename(os.path.dirname(__file__))
+ROOT = os.path.abspath(os.path.dirname(__file__))
+
+os.environ['DJANGO_SETTINGS_MODULE'] = 'fake_settings'
+os.environ['PYTHONPATH'] = os.pathsep.join([ROOT,
+                                            os.path.join(ROOT, 'examples')])
+
+if __name__ == '__main__':
+    nose.main()

setup.py

@@ -24,6 +24,11 @@ setup(
         'License :: OSI Approved :: BSD License',
         'Operating System :: OS Independent',
         'Programming Language :: Python',
+        'Programming Language :: Python :: 2',
+        'Programming Language :: Python :: 2.6',
+        'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.3',
         'Topic :: Software Development :: Libraries :: Python Modules',
     ]
 )