fix regression caused by PR 270.15.42

1 files changed, 5 insertions, 0 deletions

diff --git a/compat.py b/compat.py
index 0a11341..521b8e6 100644
--- a/compat.py
+++ b/compat.py
@@ -7,6 +7,7 @@ from __future__ import print_function
 import sys
 import os
 import types
+import sysconfig
 
 if False:  # MYPY
     from typing import Any, Dict, Optional, List, Union, BinaryIO, IO, Text, Tuple   # NOQA
@@ -112,6 +113,10 @@ if PY3:
 else:
     builtins_module = '__builtin__'
 
+UNICODE_SIZE = sysconfig.get_config_var('Py_UNICODE_SIZE')
+if UNICODE_SIZE is None:  # on Python >= 3.3 unicode has no fixed bytesize
+    UNICODE_SIZE = 4
+
 
 def with_metaclass(meta, *bases):
     # type: (Any, Any) -> Any