A Geant4-Python Interface : Development and Its Applications

We present a Geant4-Python interface called "Geant4Py", which provides a set of Python modules for using Geant4 on Python. Also we show various applications using Geant4Py, including compile-free scripts, online histogramming analysis with ROOT, Web applications, GUI applications and tools for physics validation, educational uses and medical simulation, discussing runtime performance which can be tuned between execution speed and interactivity for each use-case. These applications show the flexibility and usefulness of dynamic configuration of user applications using Python.