Python 3.1.3 打开 mbox 文件,与 python 2.x 相比真的很慢吗? [英] Python 3.1.3 open mbox file, really slow compared to python 2.x?
问题描述
我尝试在 python 3.1.3 中打开一个带有邮箱模块的 mbox 文件.里面只有3封邮件,只有27k大.
I tried in python 3.1.3 to open an mbox file, with the mailbox module. There are only 3 mails in it and it is only 27k big.
但是在阅读邮件时,我的 CPU 使用 100% 大约 2-3 分钟,直到它完成任务而没有错误.
But when reading the mails my CPU uses 100% for about 2-3 minutes, until it completes it task without an error.
我在 python 2.7.1 上也尝试过,只需要 1-2 秒?!
I tried the same with python 2.7.1 and it takes only about 1-2 seconds?!
是我发现了错误还是我做错了什么?我也在 windows 和 linux 上测试过,结果相同:(.
Did I found ah bug or I'm doing something wrong? I also tested this on windows and linux, same results :(.
这是我使用的代码,来自文档:
Here's the code I used, from the docs:
import mailbox
for message in mailbox.mbox('~/mbox'):
subject = message['subject'] # Could possibly be None.
if subject and 'python' in subject.lower():
print(subject)
推荐答案
是的,这是一个错误.http://bugs.python.org/issue9124
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