diff -r 69285bf7e865 Lib/cProfile.py
--- a/Lib/cProfile.py	Thu Jan 15 09:44:24 2015 +0100
+++ b/Lib/cProfile.py	Sun Jan 18 01:08:02 2015 +0530
@@ -122,8 +122,10 @@
 
 def main():
     import os, sys
+    import runpy
     from optparse import OptionParser
-    usage = "cProfile.py [-o output_file_path] [-s sort] scriptfile [arg] ..."
+    usage = ("cProfile.py [-o output_file_path] [-s sort] "
+             "[-m module | scriptfile] [arg] ...")
     parser = OptionParser(usage=usage)
     parser.allow_interspersed_args = False
     parser.add_option('-o', '--outfile', dest="outfile",
@@ -131,6 +133,8 @@
     parser.add_option('-s', '--sort', dest="sort",
         help="Sort order when printing to stdout, based on pstats.Stats class",
         default=-1)
+    parser.add_option('-m', '--module', dest="module", action="store_true",
+        help="Profile a library module", default=False)
 
     if not sys.argv[1:]:
         parser.print_usage()
@@ -140,7 +144,10 @@
     sys.argv[:] = args
 
     if len(args) > 0:
-        progname = args[0]
+        if options.module:
+            progname = runpy.run_module(args[0])['__file__']
+        else:
+            progname = args[0]
         sys.path.insert(0, os.path.dirname(progname))
         with open(progname, 'rb') as fp:
             code = compile(fp.read(), progname, 'exec')