python保存文件方法小结

import pickle
pickle.dump(data,open('file_path','wb')) #后缀.pkl可加可不加

pickle.dump(data,open('file_path', 'wb'),protocol=4)

data= pickle.load(open('file_path','rb'))

import numpy as np
np.savez('file_path/file_name.npz', data1=X,data2=y)

with np.load('file_path/file_name.npz') as data:
X = data['data1']
y= data['data2']

data _file.to_csv("file_path/file_name.csv", index=False)

import pandas as pd
df = pd.read_csv('file_path/file_name.csv')