diff -ur boost_1_53_0/libs/mpi/src/python/py_environment.cpp boost_1_53_0.2/libs/mpi/src/python/py_environment.cpp
--- boost_1_53_0/libs/mpi/src/python/py_environment.cpp	2007-11-25 12:38:02.000000000 -0600
+++ boost_1_53_0.2/libs/mpi/src/python/py_environment.cpp	2013-04-04 10:16:05.000000000 -0500
@@ -31,7 +31,7 @@
  */
 static environment* env; 
 
-bool mpi_init(list python_argv, bool abort_on_exception)
+bool mpi_init(boost::python::list python_argv, bool abort_on_exception)
 {
   // If MPI is already initialized, do nothing.
   if (environment::initialized())
@@ -79,7 +79,7 @@
   if (!environment::initialized()) {
     // MPI_Init from sys.argv
     object sys = object(handle<>(PyImport_ImportModule("sys")));
-    mpi_init(extract<list>(sys.attr("argv")), true);
+    mpi_init(extract<boost::python::list>(sys.attr("argv")), true);
 
     // Setup MPI_Finalize call when the program exits
     object atexit = object(handle<>(PyImport_ImportModule("atexit")));