Glumpy is a python library for scientific visualization that is both fast, scalable and beautiful. Glumpy offers an intuitive interface between numpy and modern OpenGL. Numpy arrays are tracked automatically such that any change on the CPU is reflected automatically on the GPU, making the integration seamless. glumpy provides more than 100 examples showing how to achieve this or that visualization, such as antialiasing, text rendering, isolines computation, image filtering, cartographic projection, realtime signals, FLUID simulation, SVG rendering, etc. interactive session using the regular python shell allows for dynamic data exploration.