1 files changed, 19 insertions, 3 deletions
diff --git a/python/gevent/_util_py2.py b/python/gevent/_util_py2.py
index dc74eec..02332e3 100644
--- a/python/gevent/_util_py2.py
+++ b/python/gevent/_util_py2.py
@@ -1,7 +1,23 @@
-# this produces syntax error on Python3
+import sys
 
 __all__ = ['reraise']
 
 
-def reraise(type, value, tb):
-    raise type, value, tb
+def exec_(_code_, _globs_=None, _locs_=None):
+    """Execute code in a namespace."""
+    if _globs_ is None:
+        frame = sys._getframe(1)
+        _globs_ = frame.f_globals
+        if _locs_ is None:
+            _locs_ = frame.f_locals
+        del frame
+    elif _locs_ is None:
+        _locs_ = _globs_
+    exec("""exec _code_ in _globs_, _locs_""")
+
+exec_("""def reraise(tp, value, tb=None):
+    try:
+        raise tp, value, tb
+    finally:
+        tb = None
+""")