Drop support for Python 2.6 (#590)

* Drop support for Python 2.6
* Re-organize Travis matrix

.travis.yml

@@ -1,29 +1,35 @@
 language: python
-python: 2.7
 sudo: false
-# TODO(issue 532): Fix syntax when 3.5 is natively available upstream
+
 matrix:
   include:
-    - python: 3.5
-      env:
-      - TOX_ENV=py35
+  - python: 2.7
+    env: TOX_ENV=flake8
+  - python: 2.7
+    env: TOX_ENV=docs
+  - python: 2.7
+    env: TOX_ENV=gae
+  - python: 2.7
+    env: TOX_ENV=py27
+  - python: 3.3
+    env: TOX_ENV=py33
+  - python: 3.4
+    env: TOX_ENV=py34
+  - python: 3.5
+    env: TOX_ENV=py35
+  - python: pypy
+    env: TOX_ENV=pypy
+  - python: 2.7
+    env: TOX_ENV=system-tests
+  - python: 3.4
+    env: TOX_ENV=system-tests3
 env:
-  matrix:
-  - TOX_ENV=py26
-  - TOX_ENV=py27
-  - TOX_ENV=py33
-  - TOX_ENV=py34
-  - TOX_ENV=pypy
-  - TOX_ENV=docs
-  - TOX_ENV=system-tests
-  - TOX_ENV=system-tests3
-  - TOX_ENV=gae
-  - TOX_ENV=flake8
   global:
   - GAE_PYTHONPATH=${HOME}/.cache/google_appengine
 cache:
   directories:
   - ${HOME}/.cache
+  - ${HOME}/.pyenv
 install:
 - ./scripts/install.sh
 script:

README.md

@@ -23,7 +23,7 @@ agreement.
 Supported Python Versions
 =========================
 
-We support Python 2.6, 2.7, 3.3+. More information [in the docs][2].
+We support Python 2.7 and 3.3+. More information [in the docs][2].
 
 [1]: https://github.com/google/oauth2client/blob/master/CONTRIBUTING.md
 [2]: https://oauth2client.readthedocs.io/#supported-python-versions

docs/index.rst

@@ -107,7 +107,7 @@ contributor license agreement.
 Supported Python Versions
 -------------------------
 
-We support Python 2.6, 2.7, 3.3+. (Whatever this file says, the truth is
+We support Python 2.7 and 3.3+. (Whatever this file says, the truth is
 always represented by our `tox.ini`_).
 
 .. _tox.ini: https://github.com/google/oauth2client/blob/master/tox.ini

scripts/install.sh

@@ -17,15 +17,14 @@
 set -ev
 
 pip install tox
-if [[ "${TOX_ENV}" == "pypy" ]]; then
-    git clone https://github.com/yyuu/pyenv.git ${HOME}/.pyenv
-    PYENV_ROOT="${HOME}/.pyenv"
-    PATH="${PYENV_ROOT}/bin:${PATH}"
-    eval "$(pyenv init -)"
-    pyenv install pypy-2.6.0
-    pyenv global pypy-2.6.0
-fi
 
+# App Engine tests require the App Engine SDK.
 if [[ "${TOX_ENV}" == "gae" && ! -d ${GAE_PYTHONPATH} ]]; then
     python scripts/fetch_gae_sdk.py `dirname ${GAE_PYTHONPATH}`
 fi
+
+# Travis ships with an old version of PyPy, so install at least version 2.6.
+if [[ "${TOX_ENV}" == "pypy" ]]; then
+    git clone https://github.com/yyuu/pyenv.git ${HOME}/.pyenv
+    ${HOME}/.pyenv/bin/pyenv install pypy-2.6.0
+fi

scripts/run.sh

@@ -16,10 +16,11 @@
 
 set -ev
 
+# If in the pypy environment, activate the never version of pypy provided by
+# pyenv.
 if [[ "${TOX_ENV}" == "pypy" ]]; then
-    PYENV_ROOT="${HOME}/.pyenv"
-    PATH="${PYENV_ROOT}/bin:${PATH}"
-    eval "$(pyenv init -)"
-    pyenv global pypy-2.6.0
+    PATH="${HOME}/.pyenv/versions/pypy-2.6.0/bin:${PATH}"
+    export PATH
 fi
+
 tox -e ${TOX_ENV}

setup.py

@@ -26,8 +26,8 @@ from setuptools import setup
 
 import oauth2client
 
-if sys.version_info < (2, 6):
-    print('oauth2client requires python2 version >= 2.6.', file=sys.stderr)
+if sys.version_info < (2, 7):
+    print('oauth2client requires python2 version >= 2.7.', file=sys.stderr)
     sys.exit(1)
 if (3, 1) <= sys.version_info < (3, 3):
     print('oauth2client requires python3 version >= 3.3.', file=sys.stderr)
@@ -58,7 +58,6 @@ setup(
     keywords="google oauth 2.0 http client",
     classifiers=[
         'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.6',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.3',

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py26,py27,py33,py34,py35,pypy,gae,cover
+envlist = py27,py33,py34,py35,pypy,gae,cover
 
 [testenv]
 basedeps = mock>=1.3.0
@@ -50,20 +50,6 @@ deps = {[testenv]deps}
     coverage
     nosegae
 
-[testenv:py26]
-basepython =
-    python2.6
-commands =
-    nosetests \
-      --ignore-files=test_appengine\.py \
-      --ignore-files=test__appengine_ndb\.py \
-      --ignore-files=test_keyring_storage\.py \
-      --exclude-dir=oauth2client/contrib/django_util \
-      --exclude-dir=tests/contrib/django_util \
-      {posargs}
-deps = {[testenv]basedeps}
-       nose-exclude
-
 [testenv:py33]
 basepython =
     python3.3