Numpy.save text | 将当前日期与特定文件名组合为 txt 标题

Question

To store the result of calculations, I save them in txt files using

np.savetxt('filename.txt', ..).

What I would like to do is including the current time in the filename so that the file is called "year-month-day filename.txt".

I tried to create a string variable and to use the package datetime to get the date in the way I need it. However I was not able to concatenate the date with the specific filename in the np.savetxt() function.

I am not really familiar yet with numpy so I am looking forward for help!

Thank you for advice

Answer 1

The solution is simple, try with this:

from datetime import datetime
import numpy as np

x = y = z = np.arange(0.0,5.0,1.0)
time_now = datetime.now().strftime("%Y-%m-%d-%H-%M-%S")
np.savetxt(time_now+'_project.txt', (x,y,z))

If you want another format only you can modify the strftime parameter, that works for me. Enjoy your day.