Merged revisions 83385-83389,83391 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r83385 | georg.brandl | 2010-08-01 08:42:45 +0200 (So, 01 Aug 2010) | 1 line

  #8773: mailbox.py does not need to be executable.
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  r83386 | georg.brandl | 2010-08-01 08:44:46 +0200 (So, 01 Aug 2010) | 1 line

  #8768: name test method properly so that it gets executed.
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  r83387 | georg.brandl | 2010-08-01 08:53:28 +0200 (So, 01 Aug 2010) | 1 line

  #8735: better explain semantics of *values* argument for parse().
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  r83388 | georg.brandl | 2010-08-01 09:48:43 +0200 (So, 01 Aug 2010) | 1 line

  #7395: fix traceback in do_add() when no stats are loaded.  Apply same fix for do_sort() and do_reverse().
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  r83389 | georg.brandl | 2010-08-01 09:57:47 +0200 (So, 01 Aug 2010) | 1 line

  Small improvements to pstats browser: do not crash on reading invalid file, and actually do a reload when executing "read" as intended.
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  r83391 | georg.brandl | 2010-08-01 10:10:08 +0200 (So, 01 Aug 2010) | 1 line

  Add another news entry.
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5 files changed, 32 insertions, 8 deletions

diff --git a/Doc/library/optparse.rst b/Doc/library/optparse.rst
index 9d5b9ff..13649bc 100644
--- a/Doc/library/optparse.rst
+++ b/Doc/library/optparse.rst
@@ -1238,8 +1238,9 @@ where the input parameters are
    the list of arguments to process (default: ``sys.argv[1:]``)
 
 ``values``
-   object to store option arguments in (default: a new instance of
-   :class:`optparse.Values`)
+   a :class:`optparse.Values` object to store option arguments in (default: a
+   new instance of :class:`Values`) -- if you give an existing object, the
+   option defaults will not be initialized on it
 
 and the return values are
 
diff --git a/Lib/mailbox.py b/Lib/mailbox.py
index 2b7b14e..2b7b14e 100755..100644
--- a/Lib/mailbox.py
+++ b/Lib/mailbox.py
diff --git a/Lib/pstats.py b/Lib/pstats.py
index 8b60810..59dcf26 100644
--- a/Lib/pstats.py
+++ b/Lib/pstats.py
@@ -588,7 +588,10 @@ if __name__ == '__main__':
             print >> self.stream, "  that match it are printed."
 
         def do_add(self, line):
-            self.stats.add(line)
+            if self.stats:
+                self.stats.add(line)
+            else:
+                print >> self.stream, "No statistics object is loaded."
             return 0
         def help_add(self):
             print >> self.stream, "Add profile info from given file to current statistics object."
@@ -623,22 +626,33 @@ if __name__ == '__main__':
                 except IOError, args:
                     print >> self.stream, args[1]
                     return
+                except Exception as err:
+                    print >> self.stream, err.__class__.__name__ + ':', err
+                    return
                 self.prompt = line + "% "
             elif len(self.prompt) > 2:
-                line = self.prompt[-2:]
+                line = self.prompt[:-2]
+                self.do_read(line)
             else:
                 print >> self.stream, "No statistics object is current -- cannot reload."
             return 0
         def help_read(self):
             print >> self.stream, "Read in profile data from a specified file."
+            print >> self.stream, "Without argument, reload the current file."
 
         def do_reverse(self, line):
-            self.stats.reverse_order()
+            if self.stats:
+                self.stats.reverse_order()
+            else:
+                print >> self.stream, "No statistics object is loaded."
             return 0
         def help_reverse(self):
             print >> self.stream, "Reverse the sort order of the profiling report."
 
         def do_sort(self, line):
+            if not self.stats:
+                print >> self.stream, "No statistics object is loaded."
+                return
             abbrevs = self.stats.get_sort_arg_defs()
             if line and all((x in abbrevs) for x in line.split()):
                 self.stats.sort_stats(*line.split())
@@ -660,11 +674,16 @@ if __name__ == '__main__':
             self.generic_help()
 
         def do_strip(self, line):
-            self.stats.strip_dirs()
-            return 0
+            if self.stats:
+                self.stats.strip_dirs()
+            else:
+                print >> self.stream, "No statistics object is loaded."
         def help_strip(self):
             print >> self.stream, "Strip leading path information from filenames in the report."
 
+        def help_help(self):
+            print >> self.stream, "Show help for a given command."
+
         def postcmd(self, stop, line):
             if stop:
                 return stop
diff --git a/Lib/test/test_set.py b/Lib/test/test_set.py
index 0c29017..e8ccedf 100644
--- a/Lib/test/test_set.py
+++ b/Lib/test/test_set.py
@@ -750,7 +750,7 @@ class TestBasicOps(unittest.TestCase):
         result = self.set ^ self.set
         self.assertEqual(result, empty_set)
 
-    def checkempty_symmetric_difference(self):
+    def test_empty_symmetric_difference(self):
         result = self.set ^ empty_set
         self.assertEqual(result, self.set)
 
diff --git a/Misc/NEWS b/Misc/NEWS
index 703fc9e..074ed64 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -27,6 +27,10 @@ Library
 - Issue #9448: Fix a leak of OS resources (mutexes or semaphores) when
   re-initializing a buffered IO object by calling its ``__init__`` method.
 
+- Issue #7395: Fix tracebacks in pstats interactive browser.
+
+- Issue #8230: Fix Lib/test/sortperf.py.
+
 - Issue #1713: Fix os.path.ismount(), which returned true for symbolic links
   across devices.