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-rw-r--r--scripts/qapi-commands.py12
-rw-r--r--scripts/qapi-types.py12
-rw-r--r--scripts/qapi-visit.py12
3 files changed, 14 insertions, 22 deletions
diff --git a/scripts/qapi-commands.py b/scripts/qapi-commands.py
index bd7b207122..3aabf61491 100644
--- a/scripts/qapi-commands.py
+++ b/scripts/qapi-commands.py
@@ -399,9 +399,9 @@ for o, a in opts:
     elif o in ("-m", "--middle"):
         middle_mode = True
     elif o in ("-c", "--source"):
-        do_h = True
-    elif o in ("-h", "--header"):
         do_c = True
+    elif o in ("-h", "--header"):
+        do_h = True
 
 if not do_c and not do_h:
     do_c = True
@@ -411,15 +411,11 @@ c_file = output_dir + prefix + c_file
 h_file = output_dir + prefix + h_file
 
 def maybe_open(really, name, opt):
-    class Null(object):
-        def write(self, str):
-            pass
-        def read(self):
-            return ''
     if really:
         return open(name, opt)
     else:
-        return Null()
+        import StringIO
+        return StringIO.StringIO()
 
 try:
     os.makedirs(output_dir)
diff --git a/scripts/qapi-types.py b/scripts/qapi-types.py
index ae644bc06f..b56225bdaa 100644
--- a/scripts/qapi-types.py
+++ b/scripts/qapi-types.py
@@ -183,9 +183,9 @@ for o, a in opts:
     elif o in ("-o", "--output-dir"):
         output_dir = a + "/"
     elif o in ("-c", "--source"):
-        do_h = True
-    elif o in ("-h", "--header"):
         do_c = True
+    elif o in ("-h", "--header"):
+        do_h = True
 
 if not do_c and not do_h:
     do_c = True
@@ -201,13 +201,11 @@ except os.error, e:
         raise
 
 def maybe_open(really, name, opt):
-    class Null(object):
-        def write(self, str):
-            pass
-        def read(self):
-            return ''
     if really:
         return open(name, opt)
+    else:
+        import StringIO
+        return StringIO.StringIO()
 
 fdef = maybe_open(do_c, c_file, 'w')
 fdecl = maybe_open(do_h, h_file, 'w')
diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py
index e9d0584c78..5160d83c4f 100644
--- a/scripts/qapi-visit.py
+++ b/scripts/qapi-visit.py
@@ -159,9 +159,9 @@ for o, a in opts:
     elif o in ("-o", "--output-dir"):
         output_dir = a + "/"
     elif o in ("-c", "--source"):
-        do_h = True
-    elif o in ("-h", "--header"):
         do_c = True
+    elif o in ("-h", "--header"):
+        do_h = True
 
 if not do_c and not do_h:
     do_c = True
@@ -177,13 +177,11 @@ except os.error, e:
         raise
 
 def maybe_open(really, name, opt):
-    class Null(object):
-        def write(self, str):
-            pass
-        def read(self):
-            return ''
     if really:
         return open(name, opt)
+    else:
+        import StringIO
+        return StringIO.StringIO()
 
 fdef = maybe_open(do_c, c_file, 'w')
 fdecl = maybe_open(do_h, h_file, 'w')