remove support for python 3.2.x and 3.3.x, require 3.4+, fixes #65, fixes #221

.travis.yml

@@ -8,26 +8,12 @@ cache:
 
 matrix:
     include:
-        - python: 3.2
-          os: linux
-          env: TOXENV=py32
-        - python: 3.3
-          os: linux
-          env: TOXENV=py33
         - python: 3.4
           os: linux
           env: TOXENV=py34
         - python: 3.5
           os: linux
           env: TOXENV=py35
-        - language: generic
-          os: osx
-          osx_image: xcode6.4
-          env: TOXENV=py32
-        - language: generic
-          os: osx
-          osx_image: xcode6.4
-          env: TOXENV=py33
         - language: generic
           os: osx
           osx_image: xcode6.4

.travis/install.sh

@@ -18,21 +18,13 @@ if [[ "$(uname -s)" == 'Darwin' ]]; then
     brew outdated pyenv || brew upgrade pyenv
 
     case "${TOXENV}" in
-        py32)
-            pyenv install 3.2.6
-            pyenv global 3.2.6
-            ;;
-        py33)
-            pyenv install 3.3.6
-            pyenv global 3.3.6
-            ;;
         py34)
             pyenv install 3.4.3
             pyenv global 3.4.3
             ;;
         py35)
-            pyenv install 3.5.0
-            pyenv global 3.5.0
+            pyenv install 3.5.1
+            pyenv global 3.5.1
             ;;
     esac
     pyenv rehash

Vagrantfile

@@ -161,7 +161,6 @@ end
 def install_pythons(boxname)
   return <<-EOF
     . ~/.bash_profile
-    pyenv install 3.3.0  # tests
     pyenv install 3.4.0  # tests
     pyenv install 3.5.0  # tests
     pyenv install 3.5.1  # binary build, use latest 3.5.x release
@@ -251,7 +250,7 @@ def run_tests(boxname)
     . ../borg-env/bin/activate
     if which pyenv > /dev/null; then
       # for testing, use the earliest point releases of the supported python versions:
-      pyenv global 3.3.0 3.4.0 3.5.0
+      pyenv global 3.4.0 3.5.0
     fi
     # otherwise: just use the system python
     if which fakeroot > /dev/null; then

setup.py

@@ -7,7 +7,7 @@ from glob import glob
 from distutils.command.build import build
 from distutils.core import Command
 
-min_python = (3, 2)
+min_python = (3, 4)
 my_python = sys.version_info
 
 if my_python < min_python:
@@ -242,8 +242,6 @@ setup(
         'Operating System :: POSIX :: Linux',
         'Programming Language :: Python',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.2',
-        'Programming Language :: Python :: 3.3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Topic :: Security :: Cryptography',

tox.ini

@@ -2,7 +2,7 @@
 # fakeroot -u tox --recreate
 
 [tox]
-envlist = py{32,33,34,35}
+envlist = py{34,35}
 
 [testenv]
 # Change dir to avoid import problem for cython code. The directory does