Drop support for older Python versions

Author: saghul

README.rst

@@ -130,8 +130,8 @@ Unless stated otherwise on-file fibers uses the MIT license, check LICENSE file.
 Supported Python versions
 =========================
 
-Python >= 2.6 is supported. Yes, that includes Python 3. CPython and PyPy are
-supported.
+Python >= 2.7 and >= 3.3 are supported. Other older Python versions might work, but
+they are not actively tested. CPython and PyPy are supported.
 
 
 Supported architectures

setup.py

@@ -46,17 +46,13 @@ def get_version():
           "Operating System :: Microsoft :: Windows",
           "Programming Language :: Python",
           "Programming Language :: Python :: 2",
-          "Programming Language :: Python :: 2.6",
           "Programming Language :: Python :: 2.7",
           "Programming Language :: Python :: 3",
-          "Programming Language :: Python :: 3.0",
-          "Programming Language :: Python :: 3.1",
-          "Programming Language :: Python :: 3.2",
           "Programming Language :: Python :: 3.3",
           "Programming Language :: Python :: 3.4",
           "Programming Language :: Python :: Implementation :: CPython",
           "Programming Language :: Python :: Implementation :: PyPy",
       ],
       ext_modules  = ext_modules
-     )
+)