Merged revisions 83117 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/release27-maint

................
  r83117 | victor.stinner | 2010-07-24 03:07:52 +0200 (sam., 24 juil. 2010) | 11 lines

  Merged revisions 83116 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/branches/py3k

  ........
    r83116 | victor.stinner | 2010-07-24 02:49:20 +0200 (sam., 24 juil. 2010) | 4 lines

    Issue #4629: getopt raises an error if an argument ends with = whereas getopt
    doesn't except a value (eg. --help= is rejected if getopt uses ['help='] long
    options).
  ........
................
diff --git a/Lib/getopt.py b/Lib/getopt.py
index 04e881e..f76d3de 100644
--- a/Lib/getopt.py
+++ b/Lib/getopt.py
@@ -156,7 +156,7 @@
             if not args:
                 raise GetoptError('option --%s requires argument' % opt, opt)
             optarg, args = args[0], args[1:]
-    elif optarg:
+    elif optarg is not None:
         raise GetoptError('option --%s must not have an argument' % opt, opt)
     opts.append(('--' + opt, optarg or ''))
     return opts, args