Merge pull request #206 from leif/python27

drop Python 2.6 (.travis.yml, doc, setup.py)

.travis.yml

@@ -2,7 +2,6 @@ sudo: false
 language: python
 python:
   - "2.7"
-  - "2.6"
   - "pypy"
 before_install:
   - sh -c set

docs/quickstart.rst

@@ -31,13 +31,13 @@ Install Python
 --------------
 
 Check if you already have an adequate version of Python installed by running
-``python -V``. Python v2.6 (v2.6.6 or greater recommended) or Python v2.7
-will work. Python v3 does not work. On Windows, we recommend the use of
-native Python v2.7, not Cygwin Python. If you don't have one of these
-versions of Python installed, `download`_ and install the latest version of
-Python v2.7. Make sure that the path to the installation directory has no
-spaces in it (e.g. on Windows, do not install Python in the "Program Files"
-directory).
+``python -V``. The latest version of Python v2.7 is recommended. Python v2.6.x
+is no longer officially supported, but might still work. Python v3 does not
+work. On Windows, we recommend the use of native Python v2.7, not Cygwin
+Python. If you don't have one of these versions of Python installed,
+`download`_ and install the latest version of Python v2.7. Make sure that the
+path to the installation directory has no spaces in it (e.g. on Windows, do not
+install Python in the "Program Files" directory).
 
 .. _download: https://www.python.org/downloads/
 

setup.py

@@ -1,6 +1,6 @@
 #! /usr/bin/env python
 # -*- coding: utf-8 -*-
-import sys; assert sys.version_info < (3,), ur"Tahoe-LAFS does not run under Python 3. Please use a version of Python between 2.6 and 2.7.x inclusive."
+import sys; assert sys.version_info < (3,), ur"Tahoe-LAFS does not run under Python 3. Please use Python 2.7.x."
 
 # Tahoe-LAFS -- secure, distributed storage grid
 #
@@ -101,7 +101,6 @@ trove_classifiers=[
     "Programming Language :: C",
     "Programming Language :: Python",
     "Programming Language :: Python :: 2",
-    "Programming Language :: Python :: 2.6",
     "Programming Language :: Python :: 2.7",
     "Topic :: Utilities",
     "Topic :: System :: Systems Administration",
@@ -249,7 +248,7 @@ def run_command(args, cwd=None):
     use_shell = sys.platform == "win32"
     try:
         p = subprocess.Popen(args, stdout=subprocess.PIPE, cwd=cwd, shell=use_shell)
-    except EnvironmentError as e:  # if this gives a SyntaxError, note that Tahoe-LAFS requires Python 2.6+
+    except EnvironmentError as e:  # if this gives a SyntaxError, note that Tahoe-LAFS requires Python 2.7+
         print("Warning: unable to run %r." % (" ".join(args),))
         print(e)
         return None