python;gutter:true;
import os
import requests</p>
<p>class ChunkIO:</p>
<pre><code>def __init__(self, f, size, callback=None):
self.f = f
self.size = size
self.callback = callback
def __iter__(self):
count = 0
for data in iter(self.f):
count += len(data)
yield data
if self.callback:
self.callback("\r %.2fM
</code></pre>
<p>
Original: https://www.cnblogs.com/1314h/p/16882542.html
Author: Naihe
Title: requests上传文件进度条
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