在新线程中加载图像

发布于 2024-10-29 11:51:49 字数 230 浏览 2 评论 0原文

我正在 python 中使用 urllib2 下载图像。这些操作是由计时器调用的，所以有时它会挂起我的程序。是否可以使用 urllib2 和线程？

我当前的代码：

f = open('local-path', 'wb')
f.write(urllib2.urlopen('web-path').read())
f.close()

那么，如何在新线程中运行此代码？

原文

I'm downloading image with urllib2 in python. The operations is called by timer, so sometimes it hangs my programm. Is it possible to work with urllib2 and threads?

My current code:

f = open('local-path', 'wb')
f.write(urllib2.urlopen('web-path').read())
f.close()

So, how to run this code in new thread?

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

梦回梦里 2024-11-05 11:51:49

这是我认为您所要求的一个非常基本的示例。是的，正如 RestRisiko 所说，urllib2 是线程安全的，如果这实际上就是您所要求的。

import threading
import urllib2
from time import sleep

def load_img(local_path, web_path):
    f = open(local_path, 'wb')
    f.write(urllib2.urlopen(web_path).read())
    f.close()

local_path = 'foo.txt'
web_path = 'http://www.google.com/'

img_thread = threading.Thread(target=load_img, args=(local_path, web_path))
img_thread.start()
while img_thread.is_alive():
    print "doing some other stuff while the thread does its thing"
    sleep(1)
img_thread.join()

Here's a very basic example of what I think you've asked for. And yes, as RestRisiko says, urllib2 is thread-safe, if that's actually all you're asking.

import threading
import urllib2
from time import sleep

def load_img(local_path, web_path):
    f = open(local_path, 'wb')
    f.write(urllib2.urlopen(web_path).read())
    f.close()

local_path = 'foo.txt'
web_path = 'http://www.google.com/'

img_thread = threading.Thread(target=load_img, args=(local_path, web_path))
img_thread.start()
while img_thread.is_alive():
    print "doing some other stuff while the thread does its thing"
    sleep(1)
img_thread.join()

回复收藏 0 原文

~没有更多了~