how to download a zip or rar file to local machine using python?

[dongdong]

I wrote as following:
content=urllib2.urlopen("http://www.sdfagfa.org/asasg/a.zip").read()
f=open("d:\\a.zip",'a+',1)
f.writelines(content)

the zip file has been download to my machine,but when be unzip , error
occurs:
" there is an error at the end of the file"

[James Stroud]

dongdong wrote:

I wrote as following:
content=urllib2.urlopen("http://www.sdfagfa.org/asasg/a.zip").read()
f=open("d:\\a.zip",'a+',1)
f.writelines(content)

the zip file has been download to my machine,but when be unzip , error
occurs:
" there is an error at the end of the file"

f=open("d:\\a.zip",'a+',1)

Here you want to open a.zip as a text file (default) for appending, in
both read and write mode.

I think sufficient would be

f=open("d:\\a.zip",'wb')

For opening a new file and writing as binary.

Then you will want:

f.write(content)

f.close()

James

--
James Stroud
UCLA-DOE Institute for Genomics and Proteomics
Box 951570
Los Angeles, CA 90095

http://www.jamesstroud.com/

[dongdong]

thank james;
and I have got a way to resolve it :
urllib.urlretrieve('http://x.x.x.x/library.zip','library.zip')

[dongdong]

but I want to ask: how to find out explaination about the parameters of
'open()' function?

[dongdong]

thanks a lot.