python儲存檔案的幾種方法
阿新 • • 發佈:2019-02-20
1>儲存為二進位制檔案,pkl格式
import pickle
pickle.dump(data,open('file_path','wb')) #字尾.pkl可加可不加
若檔案過大
pickle.dump(data,open('file_path', 'wb'),protocol=4)
讀取該檔案:
data= pickle.load(open('file_path','rb'))
2>儲存為二進位制檔案,npz格式
import numpy as np
np.savez('file_path/file_name.npz', data1=X,data2=y)
讀取該檔案:with np.load('file_path/file_name.npz') as data:
X = data['data1']
y= data['data2']
3>DataFrame檔案儲存為.csv
dataframe_file.to_csv("file_path/file_name.csv", index=False)
讀取該檔案:
import pandas as pd
df = pd.read_csv('file_path/file_name.csv')