Index: Lib/trace.py
===================================================================
--- Lib/trace.py	(revision 60025)
+++ Lib/trace.py	(working copy)
@@ -729,7 +729,8 @@
             continue
 
         if opt == "--ignore-module":
-            ignore_modules.append(val)
+            for mod in val.split(","):
+                ignore_modules.append(mod.strip())
             continue
 
         if opt == "--ignore-dir":
Index: Doc/library/trace.rst
===================================================================
--- Doc/library/trace.rst	(revision 60025)
+++ Doc/library/trace.rst	(working copy)
@@ -64,12 +64,14 @@
    stdout for each file processed.
 
 :option:`--ignore-module`
-   Ignore the named module and its submodules (if it is a package).  May be given
+   Accepts comma separated list of module names. Ignore each of the named
+   module and its submodules (if it is a package).  May be given 
    multiple times.
 
 :option:`--ignore-dir`
-   Ignore all modules and packages in the named directory and subdirectories.  May
-   be given multiple times.
+   Ignore all modules and packages in the named directory and subdirectories
+   (multiple directories can be joined by os.pathsep).  May be given multiple
+   times. 
 
 
 .. _trace-api: