urllib2 file name

Do you mean urllib2.urlopen? There is no function called openfile in the urllib2 module.

Anyway, use the urllib2.urlparse functions:

>>> from urllib2 import urlparse
>>> print urlparse.urlsplit('http://example.com/somefile.zip')
('http', 'example.com', '/somefile.zip', '', '')

Voila.

I think that “the file name” isn’t a very well defined concept when it comes to http transfers. The server might (but is not required to) provide one as “content-disposition” header, you can try to get that with remotefile.headers['Content-Disposition']. If this fails, you probably have to parse the URI yourself.

I guess it depends what you mean by parsing. There is no way to get the filename without parsing the URL, i.e. the remote server doesn’t give you a filename. However, you don’t have to do much yourself, there’s the urlparse module:

In [9]: urlparse.urlparse('http://example.com/somefile.zip')
Out[9]: ('http', 'example.com', '/somefile.zip', '', '', '')

import os,urllib2
resp = urllib2.urlopen('http://www.example.com/index.html')
my_url = resp.geturl()

os.path.split(my_url)[1]

# 'index.html'

This is not openfile, but maybe still helps 🙂

not that I know of.

but you can parse it easy enough like this:

url = 'http://example.com/somefile.zip'
print url.split('/')[-1]

If you only want the file name itself, assuming that there’s no query variables at the end like http://example.com/somedir/somefile.zip?foo=bar then you can use os.path.basename for this:

[user@host]$ python
Python 2.5.1 (r251:54869, Apr 18 2007, 22:08:04) 
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.path.basename("http://example.com/somefile.zip")
'somefile.zip'
>>> os.path.basename("http://example.com/somedir/somefile.zip")
'somefile.zip'
>>> os.path.basename("http://example.com/somedir/somefile.zip?foo=bar")
'somefile.zip?foo=bar'

Some other posters mentioned using urlparse, which will work, but you’d still need to strip the leading directory from the file name. If you use os.path.basename() then you don’t have to worry about that, since it returns only the final part of the URL or file path.

Using urlsplit is the safest option:

url = 'http://example.com/somefile.zip'
urlparse.urlsplit(url).path.split('/')[-1]

using requests, but you can do it easy with urllib(2)

import requests
from urllib import unquote
from urlparse import urlparse

sample = requests.get(url)

if sample.status_code == 200:
    #has_key not work here, and this help avoid problem with names

    if filename == False:

        if 'content-disposition' in sample.headers.keys():
            filename = sample.headers['content-disposition'].split('filename=')[-1].replace('"','').replace(';','')

        else:

            filename = urlparse(sample.url).query.split('/')[-1].split('=')[-1].split('&')[-1]

            if not filename:

                if url.split('/')[-1] != '':
                    filename = sample.url.split('/')[-1].split('=')[-1].split('&')[-1]
                    filename = unquote(filename)

Just saw this I normally do..

filename = url.split("?")[0].split("/")[-1]

The os.path.basename function works not only for file paths, but also for urls, so you don’t have to manually parse the URL yourself. Also, it’s important to note that you should use result.url instead of the original url in order to follow redirect responses:

import os
import urllib2
result = urllib2.urlopen(url)
real_url = urllib2.urlparse.urlparse(result.url)
filename = os.path.basename(real_url.path)

You probably can use simple regular expression here. Something like:

In [26]: import re
In [27]: pat = re.compile('.+[/?#=]([w-]+.[w-]+(?:.[w-]+)?$)')
In [28]: test_set 

['http://www.google.com/a341.tar.gz',
 'http://www.google.com/a341.gz',
 'http://www.google.com/asdasd/aadssd.gz',
 'http://www.google.com/asdasd?aadssd.gz',
 'http://www.google.com/asdasd#blah.gz',
 'http://www.google.com/asdasd?filename=xxxbl.gz']

In [30]: for url in test_set:
   ....:     match = pat.match(url)
   ....:     if match and match.groups():
   ....:         print(match.groups()[0])
   ....:         

a341.tar.gz
a341.gz
aadssd.gz
aadssd.gz
blah.gz
xxxbl.gz

Using PurePosixPath which is not operating system—dependent and handles urls gracefully is the pythonic solution:

>>> from pathlib import PurePosixPath
>>> path = PurePosixPath('http://example.com/somefile.zip')
>>> path.name
'somefile.zip'
>>> path = PurePosixPath('http://example.com/nested/somefile.zip')
>>> path.name
'somefile.zip'

Notice how there is no network traffic here or anything (i.e. those urls don’t go anywhere) – just using standard parsing rules.

You could also combine both of the two best-rated answers :
Using urllib2.urlparse.urlsplit() to get the path part of the URL, and then os.path.basename for the actual file name.

Full code would be :

>>> remotefile=urllib2.urlopen(url)
>>> try:
>>>   filename=remotefile.info()['Content-Disposition']
>>> except KeyError:
>>>   filename=os.path.basename(urllib2.urlparse.urlsplit(url).path)