Drop Python 2.6 support

There is probably some code cleanup that could be done, but it probably
isn't worth doing that now. When we eventually drop 2.7 support, we can
make everything more modern.

Author: oschwald

.travis.yml

@@ -1,7 +1,6 @@
 ---
 language: python
 python:
-  - '2.6'
   - '2.7'
   - '3.3'
   - '3.4'
@@ -27,7 +26,6 @@ before_install:
 install:
   - pip install -r requirements.txt
   - pip install requests_mock pylint coveralls
-  - "if [[ $TRAVIS_PYTHON_VERSION == '2.6' ]]; then pip install unittest2 ipaddr; fi"
   - "if [[ $TRAVIS_PYTHON_VERSION == '2.7' ]]; then pip install ipaddr; fi"
 script:
   - coverage run --source=geoip2 setup.py test

HISTORY.rst

@@ -6,6 +6,7 @@ History
 2.8.0
 +++++++++++++++++
 
+* Python 2.6 support has been dropped. Python 2.7+ or 3.3+ is now required.
 * Renamed user ID to account ID in the code and added support for the new
   ``ACCOUNT_ID_REQUIRED`` AND ``ACCOUNT_ID_UNKNOWN`` error codes.
 

README.rst

@@ -385,7 +385,7 @@ correction, please `contact MaxMind support
 Requirements
 ------------
 
-This code requires Python 2.6+ or 3.3+. Older versions are not supported.
+This code requires Python 2.7+ or 3.3+. Older versions are not supported.
 This library has been tested with CPython and PyPy.
 
 The Requests HTTP library is also required. See

setup.py

@@ -24,10 +24,9 @@
     package_data={'': ['LICENSE']},
     package_dir={'geoip2': 'geoip2'},
     include_package_data=True,
+    python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*',
     install_requires=requirements,
-    extras_require={
-        ':python_version=="2.6" or python_version=="2.7"': ['ipaddress']
-    },
+    extras_require={':python_version=="2.7"': ['ipaddress']},
     tests_require=['requests_mock>=0.5'],
     test_suite="tests",
     license=geoip2.__license__,
@@ -37,7 +36,6 @@
         'Intended Audience :: Developers',
         'Intended Audience :: System Administrators',
         'License :: OSI Approved :: Apache Software License',
-        'Programming Language :: Python :: 2.6',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.3',