Fix #2919: Drop py26 support

.travis.yml

@@ -4,7 +4,6 @@ cache:
   directories:
     - $HOME/.cache/pip
 python:
-  - "2.6"
   - "2.7"
   - "3.4"
   - "3.5"

CHANGES

@@ -46,7 +46,7 @@ Incompatible changes
 * Fix ``epub`` and ``epub3`` builders that contained links to ``genindex`` even if ``epub_use_index = False``.
 * `html_translator_class` is now deprecated.
   Use `Sphinx.set_translator()` API instead.
-* Drop python 3.3 support
+* Drop python 2.6 and 3.3 support
 * Drop epub3 builder's ``epub3_page_progression_direction`` option (use ``epub3_writing_mode``).
 
 Features added

doc/builders.rst

@@ -277,8 +277,7 @@ for details.
       A module that implements `dump()`, `load()`, `dumps()` and `loads()`
       functions that conform to the functions with the same names from the
       pickle module.  Known modules implementing this interface are
-      `simplejson` (or `json` in Python 2.6), `phpserialize`, `plistlib`,
-      and others.
+      `simplejson`, `phpserialize`, `plistlib`, and others.
 
    .. attribute:: out_suffix
 

doc/config.rst

@@ -1997,9 +1997,8 @@ Options for the linkcheck builder
 
 .. confval:: linkcheck_timeout
 
-   A timeout value, in seconds, for the linkcheck builder.  **Only works in
-   Python 2.6 and higher.**  The default is to use Python's global socket
-   timeout.
+   A timeout value, in seconds, for the linkcheck builder.  The default is to
+   use Python's global socket timeout.
 
    .. versionadded:: 1.1
 

doc/install.rst

@@ -4,7 +4,7 @@ Installing Sphinx
 =================
 
 Since Sphinx is written in the Python language, you need to install Python
-(the required version is at least 2.6) and Sphinx.
+(the required version is at least 2.7) and Sphinx.
 
 Sphinx packages are available on the `Python Package Index
 <https://pypi.python.org/pypi/Sphinx>`_.
@@ -80,8 +80,8 @@ sidebar and under "Quick Links", click "Windows Installer" to download.
 .. note::
 
    Currently, Python offers two major versions, 2.x and 3.x. Sphinx 1.3 can run
-   under Python 2.6, 2.7, 3.4, 3.5, with the recommended version being
-   2.7.  This chapter assumes you have installed Python 2.7.
+   under Python 2.7, 3.4, 3.5, with the recommended version being 2.7.  This
+   chapter assumes you have installed Python 2.7.
 
 Follow the Windows installer for Python.
 

doc/intro.rst

@@ -54,7 +54,7 @@ See the :ref:`pertinent section in the FAQ list <usingwith>`.
 Prerequisites
 -------------
 
-Sphinx needs at least **Python 2.6** or **Python 3.4** to run, as well as the
+Sphinx needs at least **Python 2.7** or **Python 3.4** to run, as well as the
 docutils_ and Jinja2_ libraries.  Sphinx should work with docutils version 0.10
 or some (not broken) SVN trunk snapshot.  If you like to have source code
 highlighting support, you must also install the Pygments_ library.

setup.py

@@ -37,8 +37,8 @@ Among its features are the following:
 * Setuptools integration
 '''
 
-if sys.version_info < (2, 6) or (3, 0) <= sys.version_info < (3, 4):
-    print('ERROR: Sphinx requires at least Python 2.6 or 3.4 to run.')
+if sys.version_info < (2, 7) or (3, 0) <= sys.version_info < (3, 4):
+    print('ERROR: Sphinx requires at least Python 2.7 or 3.4 to run.')
     sys.exit(1)
 
 requires = [
@@ -63,7 +63,7 @@ extras_require = {
     ],
     'test': [
         'nose',
-        'mock',  # it would be better for 'test:python_version in "2.6,2.7"'
+        'mock',  # it would be better for 'test:python_version in 2.7'
         'simplejson',  # better: 'test:platform_python_implementation=="PyPy"'
         'html5lib',
     ],

sphinx/__init__.py

@@ -53,9 +53,9 @@ def main(argv=sys.argv):
 
 def build_main(argv=sys.argv):
     """Sphinx build "main" command-line entry."""
-    if (sys.version_info[:3] < (2, 6, 0) or
+    if (sys.version_info[:3] < (2, 7, 0) or
        (3, 0, 0) <= sys.version_info[:3] < (3, 4, 0)):
-        sys.stderr.write('Error: Sphinx requires at least Python 2.6 or 3.4 to run.\n')
+        sys.stderr.write('Error: Sphinx requires at least Python 2.7 or 3.4 to run.\n')
         return 1
     try:
         from sphinx import cmdline

sphinx/builders/devhelp.py

@@ -13,6 +13,7 @@
 from __future__ import absolute_import
 
 import re
+import gzip
 from os import path
 
 from docutils import nodes
@@ -24,22 +25,7 @@ from sphinx.builders.html import StandaloneHTMLBuilder
 try:
     import xml.etree.ElementTree as etree
 except ImportError:
-    try:
-        import lxml.etree as etree
-    except ImportError:
-        try:
-            import elementtree.ElementTree as etree
-        except ImportError:
-            import cElementTree as etree
-
-try:
-    import gzip
-
-    def comp_open(filename, mode='rb'):
-        return gzip.open(filename + '.gz', mode)
-except ImportError:
-    def comp_open(filename, mode='rb'):
-        return open(filename, mode)
+    import lxml.etree as etree
 
 
 class DevhelpBuilder(StandaloneHTMLBuilder):
@@ -129,7 +115,8 @@ class DevhelpBuilder(StandaloneHTMLBuilder):
                 write_index(title, refs, subitems)
 
         # Dump the XML file
-        with comp_open(path.join(outdir, outname + '.devhelp'), 'w') as f:
+        xmlfile = path.join(outdir, outname + '.devhelp.gz')
+        with gzip.open(xmlfile, 'w') as f:
             tree.write(f, 'utf-8')
 
 

sphinx/pycode/pgen2/pgen.py

@@ -4,10 +4,7 @@
 from __future__ import print_function
 
 from six import iteritems
-try:
-    from collections import OrderedDict
-except ImportError: # Fallback for Python 2.6
-    OrderedDict = dict
+from collections import OrderedDict
 
 # Pgen imports
 

sphinx/util/inspect.py

@@ -60,7 +60,7 @@ if PY3:
             raise TypeError('%r is not a Python function' % func)
         return inspect.getfullargspec(func)
 
-else:  # 2.6, 2.7
+else:  # 2.7
     from functools import partial
 
     def getargspec(func):

sphinx/util/osutil.py

@@ -80,8 +80,8 @@ def ensuredir(path):
             raise
 
 
-# This function is same as os.walk of Python2.6, 2.7, 3.2, 3.3 except a
-# customization that check UnicodeError.
+# This function is same as os.walk of Python2.7 except a customization
+# that check UnicodeError.
 # The customization obstacle to replace the function with the os.walk.
 def walk(top, topdown=True, followlinks=False):
     """Backport of os.walk from 2.6, where the *followlinks* argument was

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist=flake8,py26,py27,py34,py35,pypy,du12,du11,du10
+envlist=flake8,py27,py34,py35,pypy,du12,du11,du10
 
 [testenv]
 deps=
@@ -15,11 +15,6 @@ commands=
     {envpython} tests/run.py -I py35 -m '^[tT]est' {posargs}
     sphinx-build -q -W -b html -d {envtmpdir}/doctrees doc {envtmpdir}/html
 
-[testenv:py26]
-deps=
-    mock
-    {[testenv]deps}
-
 [testenv:py27]
 deps=
     mock