Remove is_py3 and is_py35

test/run.py

@@ -114,7 +114,7 @@ import pytest
 
 import jedi
 from jedi import debug
-from jedi._compatibility import unicode, is_py3
+from jedi._compatibility import unicode
 from jedi.api.classes import Name
 from jedi.api.completion import get_user_context
 from jedi import parser_utils
@@ -401,12 +401,8 @@ def collect_dir_tests(base_dir, test_files, check_thirdparty=False):
 
             path = os.path.join(base_dir, f_name)
 
-            if is_py3:
-                with open(path, encoding='utf-8', newline='') as f:
-                    source = f.read()
-            else:
-                with open(path) as f:
-                    source = unicode(f.read(), 'UTF-8')
+            with open(path, encoding='utf-8', newline='') as f:
+                source = f.read()
 
             for case in collect_file_tests(path, StringIO(source),
                                            lines_to_execute):

test/test_api/test_interpreter.py

@@ -7,7 +7,7 @@ import warnings
 import pytest
 
 import jedi
-from jedi._compatibility import is_py3, py_version
+from jedi._compatibility import py_version
 from jedi.inference.compiled import mixed
 from importlib import import_module
 
@@ -139,9 +139,7 @@ def test_complete_raw_module():
 def test_complete_raw_instance():
     import datetime
     dt = datetime.datetime(2013, 1, 1)
-    completions = ['time', 'timetz', 'timetuple']
-    if is_py3:
-        completions += ['timestamp']
+    completions = ['time', 'timetz', 'timetuple', 'timestamp']
     _assert_interpreter_complete('(dt - dt).ti', locals(), completions)
 
 
@@ -349,12 +347,10 @@ def test_keyword_argument():
     assert c.name == 'some_keyword_argument='
     assert c.complete == 'ord_argument='
 
-    # This needs inspect.signature to work.
-    if is_py3:
-        # Make it impossible for jedi to find the source of the function.
-        f.__name__ = 'xSOMETHING'
-        c, = jedi.Interpreter("x(some_keyw", [{'x': f}]).complete()
-        assert c.name == 'some_keyword_argument='
+    # Make it impossible for jedi to find the source of the function.
+    f.__name__ = 'xSOMETHING'
+    c, = jedi.Interpreter("x(some_keyw", [{'x': f}]).complete()
+    assert c.name == 'some_keyword_argument='
 
 
 def test_more_complex_instances():
@@ -403,16 +399,12 @@ def test_dir_magic_method(allow_unsafe_getattr):
             raise AttributeError(name)
 
         def __dir__(self):
-            if is_py3:
-                names = object.__dir__(self)
-            else:
-                names = dir(object())
-            return ['foo', 'bar'] + names
+            return ['foo', 'bar'] + object.__dir__(self)
 
     itp = jedi.Interpreter("ca.", [{'ca': CompleteAttrs()}])
     completions = itp.complete()
     names = [c.name for c in completions]
-    assert ('__dir__' in names) == is_py3
+    assert ('__dir__' in names) is True
     assert '__class__' in names
     assert 'foo' in names
     assert 'bar' in names

test/test_parso_integration/test_parser_utils.py

@@ -1,5 +1,4 @@
 # -*- coding: utf-8 -*-
-from jedi._compatibility import is_py3
 from jedi import parser_utils
 from parso import parse
 from parso.python import tree
@@ -55,10 +54,7 @@ def test_hex_values_in_docstring():
         '''
 
     doc = parser_utils.clean_scope_docstring(next(parse(source).iter_funcdefs()))
-    if is_py3:
-        assert doc == '\xff'
-    else:
-        assert doc == u'<EFBFBD>'
+    assert doc == '\xff'
 
 
 @pytest.mark.parametrize(