Modules
		cctbx.crystal libtbx.easy_pickle cctbx.array_family.flex iotbx math cctbx.miller cctbx.development.random_structure cctbx.sgtbx sys

Functions
		StringIO(...) StringIO([s]) -- Return a StringIO-like stream for reading or writing exercise_basic() generate_random_f_calc(space_group_info, n_elements=10, d_min=1.5, verbose=0) run()