diff --git a/README.rst b/README.rst
index 9ed17efe..83d077cb 100644
--- a/README.rst
+++ b/README.rst
@@ -75,6 +75,9 @@ Jedi really understands your Python code. For a comprehensive list what Jedi can
 do, see: https://jedi.readthedocs.org/en/latest/docs/features.html. A list of
 caveats can be found on the same page.
 
+You can run Jedi on cPython 2.6, 2.7, 3.2 or 3.3, but it should also
+understand/parse code older than those versions.
+
 Tips on how to use Jedi efficiently can be found here:
 https://jedi.readthedocs.org/en/latest/docs/recipes.html
 
@@ -102,14 +105,12 @@ The test suite depends on ``tox`` and ``pytest``::
 
 To run the tests for all supported Python versions::
 
-    PIP_INSECURE=t tox
+    tox
 
 If you want to test only a specific Python version (e.g. Python 2.7), it's as
 easy as ::
 
     tox -e py27
 
-The ``PIP_INSECURE=t`` env variable is only needed for the ``py25`` target.
-
 Tests are also run automatically on `Travis CI
 <https://travis-ci.org/davidhalter/jedi/>`_.
diff --git a/docs/docs/features.rst b/docs/docs/features.rst
index 6038e37e..a0674131 100644
--- a/docs/docs/features.rst
+++ b/docs/docs/features.rst
@@ -9,7 +9,7 @@ Features and Caveats
 General Features
 ----------------
 
-- python 2.5+ and 3.2+ support
+- python 2.6+ and 3.2+ support
 - ignores syntax errors and wrong indentation
 - can deal with complex module / function / class structures
 - virtualenv support
diff --git a/jedi/_compatibility.py b/jedi/_compatibility.py
index 73c7f865..ccb99f8c 100644
--- a/jedi/_compatibility.py
+++ b/jedi/_compatibility.py
@@ -1,10 +1,7 @@
 """
-To ensure compatibility from Python ``2.5`` - ``3.2``, a module has been
+To ensure compatibility from Python ``2.6`` - ``3.3``, a module has been
 created. Clearly there is huge need to use conforming syntax. But many changes
 (e.g. ``property``, ``hasattr`` in ``2.5``) can be rewritten in pure python.
-
-Most of the code here is necessary to support Python 2.5. Once this dependency
-will be dropped, we'll get rid of most code.
 """
 import sys
 import imp
@@ -16,7 +13,6 @@ except:
 
 is_py3k = sys.hexversion >= 0x03000000
 is_py33 = sys.hexversion >= 0x03030000
-is_py25 = sys.hexversion < 0x02060000
 
 
 def find_module_py33(string, path=None):
@@ -91,34 +87,6 @@ except NameError:
             else:
                 return default
 
-# ast module was defined in python 2.6
-try:
-    from ast import literal_eval
-except ImportError:
-    literal_eval = eval
-
-
-# properties in 2.5
-try:
-    property.setter
-except AttributeError:
-    class property(property):
-        def __init__(self, fget, *args, **kwargs):
-            self.__doc__ = fget.__doc__
-            super(property, self).__init__(fget, *args, **kwargs)
-
-        def setter(self, fset):
-            cls_ns = sys._getframe(1).f_locals
-            for k, v in cls_ns.iteritems():
-                if v == self:
-                    propname = k
-                    break
-            cls_ns[propname] = property(self.fget, fset,
-                                        self.fdel, self.__doc__)
-            return cls_ns[propname]
-else:
-    property = property
-
 # unicode function
 try:
     unicode = unicode
@@ -203,66 +171,10 @@ def use_metaclass(meta, *bases):
     return meta("HackClass", bases, {})
 
 try:
-    from inspect import cleandoc
-except ImportError:
-    # python 2.5 doesn't have this method
-    import string
-
-    def cleandoc(doc):
-        """Clean up indentation from docstrings.
-
-        Any whitespace that can be uniformly removed from the second line
-        onwards is removed."""
-        try:
-            lines = string.split(string.expandtabs(doc), '\n')
-        except UnicodeError:
-            return None
-        else:
-            # Find minimum indentation of any non-blank lines after first line.
-            margin = sys.maxint
-            for line in lines[1:]:
-                content = len(string.lstrip(line))
-                if content:
-                    indent = len(line) - content
-                    margin = min(margin, indent)
-            # Remove indentation.
-            if lines:
-                lines[0] = lines[0].lstrip()
-            if margin < sys.maxint:
-                for i in range(1, len(lines)):
-                    lines[i] = lines[i][margin:]
-            # Remove any trailing or leading blank lines.
-            while lines and not lines[-1]:
-                lines.pop()
-            while lines and not lines[0]:
-                lines.pop(0)
-            return string.join(lines, '\n')
-
-if is_py25:
-    # adds the `itertools.chain.from_iterable` constructor
-    import itertools
-
-    class chain(itertools.chain):
-        @staticmethod
-        def from_iterable(iterables):
-            # chain.from_iterable(['ABC', 'DEF']) --> A B C D E F
-            for it in iterables:
-                for element in it:
-                    yield element
-    itertools.chain = chain
-    del chain
-
-try:
-    from functools import reduce
+    from functools import reduce  # Python 3
 except ImportError:
     reduce = reduce
 
-try:
-    import json
-except ImportError:
-    # python 2.5
-    import simplejson as json
-
 try:
     encoding = sys.stdout.encoding
 except AttributeError:
diff --git a/jedi/cache.py b/jedi/cache.py
index e2c0c236..bf96671f 100644
--- a/jedi/cache.py
+++ b/jedi/cache.py
@@ -21,6 +21,7 @@ from __future__ import with_statement
 import time
 import os
 import sys
+import json
 import hashlib
 try:
     import cPickle as pickle
@@ -28,7 +29,6 @@ except:
     import pickle
 import shutil
 
-from jedi._compatibility import json
 from jedi import settings
 from jedi import common
 from jedi import debug
diff --git a/jedi/evaluate_representation.py b/jedi/evaluate_representation.py
index d5402e4b..1bb2c65e 100644
--- a/jedi/evaluate_representation.py
+++ b/jedi/evaluate_representation.py
@@ -14,7 +14,7 @@ from __future__ import with_statement
 import copy
 import itertools
 
-from jedi._compatibility import property, use_metaclass, next, hasattr
+from jedi._compatibility import use_metaclass, next, hasattr
 from jedi import parsing_representation as pr
 from jedi import cache
 from jedi import helpers
diff --git a/jedi/fast_parser.py b/jedi/fast_parser.py
index 1923a76e..eadaa01d 100644
--- a/jedi/fast_parser.py
+++ b/jedi/fast_parser.py
@@ -6,7 +6,7 @@ finished (and still not working as I want), I won't document it any further.
 import re
 import operator
 
-from jedi._compatibility import use_metaclass, reduce, property
+from jedi._compatibility import use_metaclass, reduce
 from jedi import settings
 from jedi import parsing
 from jedi import parsing_representation as pr
@@ -225,7 +225,7 @@ class FastParser(use_metaclass(CachedFastParser)):
         if settings.fast_parser_always_reparse:
             self.parsers[:] = []
 
-        # dict comprehensions are not available in py2.5/2.6 :-(
+        # dict comprehensions are not available in 2.6 :-(
         hashes = dict((p.hash, p) for p in self.parsers)
 
         line_offset = 0
diff --git a/jedi/keywords.py b/jedi/keywords.py
index cd591aa6..c940fd28 100644
--- a/jedi/keywords.py
+++ b/jedi/keywords.py
@@ -11,11 +11,7 @@ try:
     from pydoc_data import topics as pydoc_topics
 except ImportError:
     # Python 2.6
-    try:
-        import pydoc_topics
-    except ImportError:
-        # Python 2.5
-        pydoc_topics = None
+    import pydoc_topics
 
 if is_py3k:
     keys = keyword.kwlist
diff --git a/jedi/modules.py b/jedi/modules.py
index 3301eba7..398bcf69 100644
--- a/jedi/modules.py
+++ b/jedi/modules.py
@@ -19,8 +19,9 @@ import re
 import tokenizer as tokenize
 import sys
 import os
+from ast import literal_eval
 
-from jedi._compatibility import exec_function, unicode, is_py25, literal_eval
+from jedi._compatibility import exec_function, unicode
 from jedi import cache
 from jedi import parsing
 from jedi import parsing_representation as pr
@@ -383,8 +384,7 @@ def source_to_unicode(source, encoding=None):
         http://docs.python.org/2/reference/lexical_analysis.html#encoding-\
                                                                 declarations
         """
-        byte_mark = '\xef\xbb\xbf' if is_py25 else \
-                                        literal_eval(r"b'\xef\xbb\xbf'")
+        byte_mark = literal_eval(r"b'\xef\xbb\xbf'")
         if source.startswith(byte_mark):
             # UTF-8 byte-order mark
             return 'utf-8'
diff --git a/jedi/parsing_representation.py b/jedi/parsing_representation.py
index 562baa67..cd015fc3 100644
--- a/jedi/parsing_representation.py
+++ b/jedi/parsing_representation.py
@@ -39,9 +39,10 @@ from __future__ import with_statement
 import os
 import re
 import tokenizer as tokenize
+from inspect import cleandoc
+from ast import literal_eval
 
-from jedi._compatibility import next, literal_eval, cleandoc, Python3Method, \
-                            encoding, property, unicode, is_py3k
+from jedi._compatibility import next, Python3Method, encoding, unicode, is_py3k
 from jedi import common
 from jedi import debug
 
diff --git a/setup.py b/setup.py
index bb0ee4e9..d32cc781 100755
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,6 @@ setup(name='jedi',
           'License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)',
           'Operating System :: OS Independent',
           'Programming Language :: Python :: 2',
-          'Programming Language :: Python :: 2.5',
           'Programming Language :: Python :: 2.6',
           'Programming Language :: Python :: 2.7',
           'Programming Language :: Python :: 3',
diff --git a/test/run.py b/test/run.py
index 62178501..e1fff345 100755
--- a/test/run.py
+++ b/test/run.py
@@ -98,14 +98,14 @@ Tests look like this::
 """
 import os
 import re
+from ast import literal_eval
 
 if __name__ == '__main__':
     import sys
     sys.path.insert(0, '..')
 
 import jedi
-from jedi._compatibility import unicode, StringIO, reduce, is_py25, \
-                                literal_eval
+from jedi._compatibility import unicode, reduce, StringIO
 
 
 TEST_COMPLETIONS = 0
@@ -255,11 +255,6 @@ def collect_dir_tests(base_dir, test_files, check_thirdparty=False):
         files_to_execute = [a for a in test_files.items() if a[0] in f_name]
         lines_to_execute = reduce(lambda x, y: x + y[1], files_to_execute, [])
         if f_name.endswith(".py") and (not test_files or files_to_execute):
-            # for python2.5 certain tests are not being done, because it
-            # only has these features partially.
-            if is_py25 and f_name in ['generators.py', 'types.py']:
-                continue
-
             skip = None
             if check_thirdparty:
                 lib = f_name.replace('_.py', '')
diff --git a/test/test_regression.py b/test/test_regression.py
index 3952e6b7..10d423f0 100755
--- a/test/test_regression.py
+++ b/test/test_regression.py
@@ -14,7 +14,7 @@ import textwrap
 from .base import TestBase, unittest, cwd_at
 
 import jedi
-from jedi._compatibility import is_py25, utf8, unicode
+from jedi._compatibility import utf8, unicode
 from jedi import api
 api_classes = api.api_classes
 
@@ -84,8 +84,7 @@ class TestRegression(TestBase):
     def test_keyword_doc(self):
         r = list(self.definition("or", (1, 1)))
         assert len(r) == 1
-        if not is_py25:
-            assert len(r[0].doc) > 100
+        assert len(r[0].doc) > 100
 
         r = list(self.definition("asfdasfd", (1, 1)))
         assert len(r) == 0
@@ -93,8 +92,7 @@ class TestRegression(TestBase):
     def test_operator_doc(self):
         r = list(self.definition("a == b", (1, 3)))
         assert len(r) == 1
-        if not is_py25:
-            assert len(r[0].doc) > 100
+        assert len(r[0].doc) > 100
 
     def test_function_call_signature(self):
         defs = self.definition("""
@@ -329,8 +327,6 @@ class TestRegression(TestBase):
         assert [d.doc for d in defs]
 
     def test_goto_following_on_imports(self):
-        if is_py25:
-            return
         g = self.goto("import multiprocessing.dummy; multiprocessing.dummy")
         assert len(g) == 1
         assert g[0].start_pos != (0, 0)
diff --git a/tox.ini b/tox.ini
index a10c0497..acacf755 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,11 +5,6 @@ deps =
     https://bitbucket.org/hpk42/pytest/get/c4f58165e0d4.zip
 commands =
     py.test []
-[testenv:py25]
-deps =
-    simplejson
-    unittest2
-    {[testenv]deps}
 [testenv:py26]
 deps =
     unittest2