AttributeError:'module'对象没有属性'urlretrieve'

Question

我正在尝试编写一个程序,将从网站上下载mp3然后将它们连接在一起,但每当我尝试下载文件时,我都会收到此错误:

Traceback (most recent call last):
File "/home/tesla/PycharmProjects/OldSpice/Voicemail.py", line 214, in <module> main()
File "/home/tesla/PycharmProjects/OldSpice/Voicemail.py", line 209, in main getMp3s()
File "/home/tesla/PycharmProjects/OldSpice/Voicemail.py", line 134, in getMp3s
raw_mp3.add = urllib.urlretrieve("http://www-scf.usc.edu/~chiso/oldspice/m-b1-hello.mp3")
AttributeError: 'module' object has no attribute 'urlretrieve'

导致此问题的线是

raw_mp3.add = urllib.urlretrieve("http://www-scf.usc.edu/~chiso/oldspice/m-b1-hello.mp3")

Answer 1

当您使用Python 3时,不再有urllib模块.它已被分成几个模块.

这相当于urlretrieve:

import urllib.request
data = urllib.request.urlretrieve("http://...")

urlretrieve的行为与Python 2.x中的行为完全相同,因此它可以正常工作.

基本上:

• urlretrieve 将文件保存到临时文件并返回元组 (filename, headers)
• urlopen返回一个Request对象,其read方法返回包含文件内容的bytestring

Answer 2

Python 2 + 3兼容解决方案是:

import sys

if sys.version_info[0] >= 3:
    from urllib.request import urlretrieve
else:
    # Not Python 3 - today, it is most likely to be Python 2
    # But note that this might need an update when Python 4
    # might be around one day
    from urllib import urlretrieve

# Get file from URL like this:
urlretrieve("http://www-scf.usc.edu/~chiso/oldspice/m-b1-hello.mp3")

Answer 3

假设您有以下几行代码

MyUrl = "www.google.com" #Your url goes here
urllib.urlretrieve(MyUrl)

如果您收到以下错误消息

AttributeError: module 'urllib' has no attribute 'urlretrieve'

那么您应该尝试以下代码来解决该问题：

import urllib.request
MyUrl = "www.google.com" #Your url goes here
urllib.request.urlretrieve(MyUrl)