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diff --git a/gnuradio-runtime/swig/basic_block.i b/gnuradio-runtime/swig/basic_block.i
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+/* -*- c++ -*- */
+/*
+ * Copyright 2006,2010,2013 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+class gr::basic_block;
+typedef boost::shared_ptr<gr::basic_block> gr::basic_block_sptr;
+%template(basic_block_sptr) boost::shared_ptr<gr::basic_block>;
+
+%import "pmt_swig.i"
+
+// support vectors of these...
+namespace std {
+  %template(x_vector_basic_block_sptr) vector<gr::basic_block_sptr>;
+};
+
+namespace gr {
+
+  class gr::basic_block
+  {
+  protected:
+    basic_block();
+
+  public:
+    virtual ~basic_block();
+    std::string name() const;
+    std::string symbol_name() const;
+    gr::io_signature::sptr input_signature() const;
+    gr::io_signature::sptr output_signature() const;
+    long unique_id() const;
+    gr::basic_block_sptr to_basic_block();
+    bool check_topology(int ninputs, int noutputs);
+    std::string alias();
+    void set_block_alias(std::string name);
+    void _post(pmt::pmt_t which_port, pmt::pmt_t msg);
+    pmt::pmt_t message_ports_in();
+    pmt::pmt_t message_ports_out();
+  };
+
+  %rename(block_ncurrently_allocated) basic_block_ncurrently_allocated;
+  long basic_block_ncurrently_allocated();
+}
+
+#ifdef SWIGPYTHON
+%pythoncode %{
+basic_block_sptr.__repr__ = lambda self: "<basic_block %s (%d)>" % (self.name(), self.unique_id ())
+%}
+#endif