backport of patch #934971.

diff --git a/Lib/trace.py b/Lib/trace.py
index 424905b5a108123c819c3f58dec481bc6406eb87..2d3bd09b16e793afe980d7498042568397f4350d 100644 (file)
--- a/Lib/trace.py
+++ b/Lib/trace.py
@@ -383,7 +383,7 @@ def find_executable_linenos(filename):
     """Return dict where keys are line numbers in the line number table."""
     assert filename.endswith('.py')
     try:
-        prog = open(filename).read()
+        prog = open(filename, "rU").read()
     except IOError, err:
         print >> sys.stderr, ("Not printing coverage data for %r: %s"
                               % (filename, err))