python - How to get download speed elegantly?

Question

I used to use urlopen and then read, open a thread, and detect the received buffer size every second. Is there a more elegant way to gain speed?

Answer 1

For urllib.urlretrieve(url[, filename[, reporthook[, data]]]), write the callback function

import time
import urllib
start_time = time.time()
def Schedule(a,b,c):
    '''
    a:已经下载的数据块
    b:数据块的大小
    c:远程文件的大小
    '''
    speed = (a * b) / (time.time() - start_time)
    print speed
    
urllib.urlretrieve(url,local,Schedule)

Answer 2

Use progreebar

Answer 3

streaming.

Answer 4

Have you tried detecting the increment of the downloaded file?
Check the local size of the downloaded file regularly and take the increment.

Answer 5

If it is python, most libraries will provide callback functions to do this work.