python_data:python_data:+ numpyimport numpy as npnp.arange()np.random+ pandasimport pandas as pdpd.read_csv() pd.to_csv()+scipy+ osimport os,sysos.listdir() os.path.isfile() os.path.isdir() os.remove() os.system()+ dict,list,tuplereturn_topreturn_backnext