I got this. ---> Computing dependencies for py27-graph-tool ---> Building py27-graph-tool ---> Staging py27-graph-tool into destroot ---> Installing py27-graph-tool @2.2.27_0 ---> Activating py27-graph-tool @2.2.27_0 ---> Cleaning py27-graph-tool ---> Updating database of binaries: 100.0% ---> Scanning binaries for linking errors: 9.2% Warning: Error parsing file /Applications/MacPorts/Python 2.7/Python Launcher.app/Contents/MacOS/Python Launcher: Error opening or reading file ---> Scanning binaries for linking errors: 100.0% ---> No broken files found. Then I installed spyder and ran an working algorithm and got this: dyld: lazy symbol binding failed: Symbol not found: __ZN5boost6python7objects23register_dynamic_id_auxENS0_9type_infoEPFNSt3__14pairIPvS2_EES5_E Referenced from: /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/graph_tool/libgraph_tool_core.so Expected in: flat namespace dyld: Symbol not found: __ZN5boost6python7objects23register_dynamic_id_auxENS0_9type_infoEPFNSt3__14pairIPvS2_EES5_E Referenced from: /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/graph_tool/libgraph_tool_core.so Expected in: flat namespace