Drop support for EOL Python 3.3 (#1019)

jedi/_compatibility.py

@@ -16,8 +16,6 @@ except ImportError:
     pass
 
 is_py3 = sys.version_info[0] >= 3
-is_py33 = is_py3 and sys.version_info[1] >= 3
-is_py34 = is_py3 and sys.version_info[1] >= 4
 is_py35 = is_py3 and sys.version_info[1] >= 5
 py_version = int(str(sys.version_info[0]) + str(sys.version_info[1]))
 
@@ -116,7 +114,7 @@ def find_module_py33(string, path=None, loader=None, full_name=None, is_global_s
     return module_file, module_path, is_package
 
 
-def find_module_pre_py33(string, path=None, full_name=None, is_global_search=True):
+def find_module_pre_py34(string, path=None, full_name=None, is_global_search=True):
     # This import is here, because in other places it will raise a
     # DeprecationWarning.
     import imp
@@ -151,8 +149,7 @@ def find_module_pre_py33(string, path=None, full_name=None, is_global_search=Tru
     raise ImportError("No module named {}".format(string))
 
 
-find_module = find_module_py33 if is_py33 else find_module_pre_py33
-find_module = find_module_py34 if is_py34 else find_module
+find_module = find_module_py34 if is_py3 else find_module_pre_py34
 find_module.__doc__ = """
 Provides information about a module.
 

jedi/evaluate/compiled/access.py

@@ -5,7 +5,7 @@ from textwrap import dedent
 import operator as op
 from collections import namedtuple
 
-from jedi._compatibility import unicode, is_py3, is_py34, builtins, \
+from jedi._compatibility import unicode, is_py3, builtins, \
     py_version, force_unicode, print_to_stderr
 from jedi.evaluate.compiled.getattr_static import getattr_static
 
@@ -31,10 +31,9 @@ NOT_CLASS_TYPES = (
 if is_py3:
     NOT_CLASS_TYPES += (
         types.MappingProxyType,
-        types.SimpleNamespace
+        types.SimpleNamespace,
+        types.DynamicClassAttribute,
     )
-    if is_py34:
-        NOT_CLASS_TYPES += (types.DynamicClassAttribute,)
 
 
 # Those types don't exist in typing.