Hi, guys: According to the "Calling the R Statistical Package from IDL via Python", rpy2 with Anaconda2 successfully installed on my windows 64bit system. I can get the graphics windows with the following commands: IDL> !null = Python.run("from rpy2.robjects.packages import importr") % Loaded DLM: PYTHON27. % Program caused arithmetic error: Floating underflow % Program caused arithmetic error: Floating illegal operand IDL> !null = Python.run("import rpy2.robjects.numpy2ri") IDL> !null = Python.run("rpy2.robjects.numpy2ri.activate()") IDL> importr = Python.importr IDL> graphics = importr('graphics') IDL> !null = graphics.plot(findgen(10), main="Eigen values") But when I write those command into a procedure, like: PRO test_rpy2 !null = Python.run("from rpy2.robjects.packages import importr") !null = Python.run("import rpy2.robjects.numpy2ri") !null = Python.run("rpy2.robjects.numpy2ri.activate()") importr = Python.importr graphics = importr('graphics') !null = graphics.plot(findgen(10), main="Eigen values") END "test_rpy2" stopped at "graphics = importr('graphics')" and the error was given: % Compiled module: TEST_RPY2. % Python: Unable to index object of type: "function" So why? thanks! Dave