以当前日期和时间格式保存文件

Question

I'm logging sensor readings with timestamps.

I want to save the file in current date and time name format, like 2019-08-20-15-20.

Any idea how to make it?.

write_fmtt = " ".join("%4.8f" for _ in timestamped_camera_readings)
timestamped_camera_readings = np.append(float(timestamp),[arr1 , arr2 , arr3 , arr4])
write_fmtt += " %.0f"

with open("sensor reading.txt", "ab") as ff:
     np.savetxt(ff, np.expand_dims(timestamped_camera_readings, axis=0),fmt='%f')

Answer 1

you can do something like this:

with open("sensor reading {}.txt".format(datetime.now().strftime('%d-%m-%Y-%H-%M')), "ab") as ff:
    np.savetxt(ff, np.expand_dims(timestamped_camera_readings, axis=0),fmt='%f')