Hi, I am new to BGL as well as python and need to install BGL support for Python. I followed the following steps for the installation. 1. downloaded Boost current : 1.49.0: & bootstrap with --with-python=/usr/bin/python 2. downloaded bgl-python from 'svn co https://svn.osl.iu.edu/svn/projects/viz/bgl-python' 3. set the environ variable BOOST_ROOT to "dir head of Boost1_49_0 src code" 4. run bjam in bgl-python. dir I get 2 compilation errors. ...failed gcc.compile.c++ bin.v2/gcc-4.6/release/graphml.o... ...skipped _graph.so for lack of graphviz.o... ...failed updating 2 targets... ...skipped 1 target... === The errors are related to read/write_graphviz() read/write_graphml() in files graphviz.cpp and graphml.cpp : Anyone who have fixes are work around, kindly please let know. Thanks a lot, in advance. Example error output given below: [1] In file included from src/graphviz.cpp:11:0: 17 boost-python/boost_1_49_0/boost/graph/graphviz.hpp: In function ‘void boost::write_graphviz(std::ostream&, con st Graph&, VertexPropertiesWriter, EdgePropertiesWriter, GraphPropertiesWriter, VertexID, typename boost::enable_if_c::value, boost::graph ::detail::no_parameter>::type) [with Graph = boost::graph::python::basic_graphboost::undirectedS, VertexPropertiesWriter = b oost::dynamic_properties, EdgePropertiesWriter = std::basic_string<char>, GraphPropertiesWriter = boost::graph::python::object _as_string_property_map >, VertexID = boost::graph::python:: basic_index_map, boost::adj_list_vertex_property_map, boost::pr operty, boost::no_property, boost::listS>, unsigned int, const unsigned int&, boost::vertex _index_t> >, std::ostream = std::basic_ostream<char>, typename boost::enable_if_c::value, boost::graph::detail::no_parameter>::type = boos t::graph::detail::no_parameter]’: 18 boost-python/boost_1_49_0/boost/graph/graphviz.hpp:286:5: instantiated from ‘void boost::write_graphviz(std: :ostream&, const Graph&, VertexPropertiesWriter, EdgePropertiesWriter, GraphPropertiesWriter, typename boost::enable_if_c::value, boost::g raph::detail::no_parameter>::type) [with Graph = boost::graph::python::basic_graphboost::undirectedS, VertexPropertiesWriter = boost::dynamic_properties, EdgePropertiesWriter = std::basic_string<char>, GraphPropertiesWriter = boost::graph::python::ob ject_as_string_property_map >, std::ostream = std::basic_ost ream<char>, typename boost::enable_if_c::traversal_category>::value, boost::graph::detail::no_parameter>::type = boost::graph::detail::no_parameter]’ 19 src/graphviz.cpp:105:5: instantiated from ‘void boost::graph::python::write_graphviz(const Graph&, const string&, const stri ng&) [with Graph = boost::graph::python::basic_graphboost::undirectedS, std::string = std::basic_string<char>]’ 20 src/graphs.hpp:28:1: instantiated from here 21 boost-python/boost_1_49_0/boost/graph/graphviz.hpp:260:5: error: no match for call to ‘(boost::graph::python:: object_as_string_property_map >) (std::ostream&)’