Eliminate is_py3 usages

jedi/evaluate/compiled/fake.py

@@ -7,7 +7,7 @@ mixing in Python code, the autocompletion should work much better for builtins.
 import os
 from itertools import chain
 
-from jedi._compatibility import is_py3, unicode
+from jedi._compatibility import unicode
 
 fake_modules = {}
 

jedi/evaluate/compiled/subprocess/__init__.py

@@ -300,8 +300,8 @@ class AccessHandle(object):
 
     @memoize_method
     def _cached_results(self, name, *args, **kwargs):
-        if type(self._subprocess) == EvaluatorSubprocess:
-            print(name, args, kwargs,
-                self._subprocess.get_compiled_method_return(self.id, name, *args, **kwargs)
-            )
+        #if type(self._subprocess) == EvaluatorSubprocess:
+            #print(name, args, kwargs,
+                #self._subprocess.get_compiled_method_return(self.id, name, *args, **kwargs)
+            #)
         return self._subprocess.get_compiled_method_return(self.id, name, *args, **kwargs)

jedi/evaluate/context/instance.py

@@ -1,6 +1,5 @@
 from abc import abstractproperty
 
-from jedi._compatibility import is_py3
 from jedi import debug
 from jedi.evaluate import compiled
 from jedi.evaluate import filters
@@ -136,7 +135,10 @@ class AbstractInstanceContext(Context):
         for generator in self.execute_function_slots(iter_slot_names):
             if isinstance(generator, AbstractInstanceContext):
                 # `__next__` logic.
-                name = '__next__' if is_py3 else 'next'
+                if self.evaluator.environment.version_info.major == 2:
+                    name = 'next'
+                else:
+                    name = '__next__'
                 iter_slot_names = generator.get_function_slot_names(name)
                 if iter_slot_names:
                     yield LazyKnownContexts(

jedi/evaluate/filters.py

@@ -6,7 +6,6 @@ from abc import abstractmethod
 
 from parso.tree import search_ancestor
 
-from jedi._compatibility import is_py3
 from jedi.evaluate import flow_analysis
 from jedi.evaluate.base_context import ContextSet, Context
 from jedi.parser_utils import get_parent_scope