爲什麼urllib.request.urlretrieve沒有控制權轉移給下一個指令

Question

在解釋 'urllib.request.urlretrieve' 這樣的工作帶來極大的：

Python 3.4.3+ (default, Oct 14 2015, 16:03:50) 
[GCC 5.2.1 20151010] on linux 
Type "help", "copyright", "credits" or "license" for more information. 
>>> import urllib.request 
>>>urllib.request.urlretrieve('https://download.owncloud.org/download/repositories/stable/Ubuntu_15.10/Release.key', 'Release.key') 
('Release.key', <http.client.HTTPMessage object at 0x7fa008f76518>) 

在此功能將無法正常工作：

def owncloudI(): 
    print(ok('Installing OwnCloud...\n')) 
    urllib.request.urlretrieve('https://download.owncloud.org/download/repositories/stable/Ubuntu_15.10/Release.key', 'Release.key') #<---- stuck here 
    call(['apt-key', 'add', 'Release.key']) 
    rep = open('/etc/apt/sources.list.d/owncloud.list', 'a') 
    print('deb http://download.owncloud.org/download/repositories/stable/Ubuntu_15.10/', file=rep) 
    rep.close() 
    call(['apt-get', 'update']) 
    call(['apt-get', 'install', 'owncloud']) 

使用sudo進行代碼啓動並在/ tmp cat中執行，因此我認爲所有權利都可以。也許有人解決了類似的問題。

Answer 1

修復它這跟

with urllib.request.urlopen('https://download.owncloud.org/download/repositories/stable/Ubuntu_15.10/Release.key') as response, open('resp.key', 'wb') as out_file: 
    data = response.read() 
    out_file.write(data)