Index: example.py
===================================================================
--- example.py	(revision 61574)
+++ example.py	(working copy)
@@ -362,5 +362,7 @@
 def buffer_examples():
 x = buffer(y)
 
+def sys_exc_examples():
+ print sys.exc_type, sys.exc_value, sys.exc_traceback
 
 # This is the last line.
Index: lib2to3/tests/test_fixers.py
===================================================================
--- lib2to3/tests/test_fixers.py	(revision 61574)
+++ lib2to3/tests/test_fixers.py	(working copy)
@@ -2912,7 +2912,24 @@
 a = """ itertools.filterfalse(a, b)"""
 self.check(b, a)
 
+class Test_sys_exc(FixerTestCase):
+ fixer = "sys_exc"
 
+ def test_0(self):
+ b = "sys.exc_type"
+ a = "sys.exc_info()[0]"
+ self.check(b, a)
+
+ def test_1(self):
+ b = "sys.exc_value"
+ a = "sys.exc_info()[1]"
+ self.check(b, a)
+
+ def test_2(self):
+ b = "sys.exc_traceback"
+ a = "sys.exc_info()[2]"
+ self.check(b, a)
+
 if __name__ == "__main__":
 import __main__
 support.run_all_tests(__main__)
Index: lib2to3/fixes/fix_sys_exc.py
===================================================================
--- lib2to3/fixes/fix_sys_exc.py	(revision 0)
+++ lib2to3/fixes/fix_sys_exc.py	(revision 0)
@@ -0,0 +1,25 @@
+"""Fixer for sys.exc_{type, value, traceback}
+
+sys.exc_type -> sys.exc_info()[0]
+sys.exc_value -> sys.exc_info()[1]
+sys.exc_traceback -> sys.exc_info()[2]
+"""
+
+# Local imports
+from . import basefix
+from .util import Attr, Call, Name, Number, Subscript, Node, syms
+
+class FixSysExc(basefix.BaseFix):
+ # This order matches the ordering of sys.exc_info().
+ exc_info = ["exc_type", "exc_value", "exc_traceback"]
+ PATTERN = """
+ power< 'sys' trailer< '.' method=(%s)>>
+ """ % '&#124;'.join("'%s'" % e for e in exc_info)
+
+ def transform(self, node, results):
+ method = results["method"][0]
+ index = Number(self.exc_info.index(method.value))
+
+ exc = Attr(Name("sys"), Call(Name("exc_info")))
+ exc.append(Subscript(index))
+ return Node(syms.power, exc, prefix=node.get_prefix())
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