Path: csiph.com!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder2.hal-mli.net!newsfeed.xs4all.nl!newsfeed2.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.004 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'socket': 0.05; 'urllib2': 0.07; 'python': 0.09; 'differently.': 0.09; 'expected.': 0.09; 'garbage': 0.09; 'received:216.32.180': 0.09; '(may': 0.16; '2.7.3': 0.16; 'bug,': 0.16; 'reproduce': 0.16; 'spurious': 0.16; 'url:ftp': 0.16; 'urllib': 0.16; 'urllib2,': 0.16; 'equivalent': 0.20; 'to:name:python-list@python.org': 0.20; 'fairly': 0.21; "i've": 0.23; 'seems': 0.23; 'received:169.254': 0.24; 'linux': 0.24; 'looks': 0.26; 'guess': 0.27; 'object,': 0.27; 'received:216.32': 0.27; "doesn't": 0.28; 'fine': 0.28; 'noticed': 0.28; 'though.': 0.29; 'received:169': 0.29; "i'm": 0.29; 'error': 0.30; 'header:Received:8': 0.30; 'code': 0.31; 'could': 0.32; 'getting': 0.33; 'to:addr:python-list': 0.33; 'loss': 0.34; 'received:bigfish.com': 0.35; 'something': 0.35; 'except': 0.36; 'skip:u 20': 0.36; 'but': 0.36; 'charset:us-ascii': 0.36; 'received:10': 0.38; 'to:addr:python.org': 0.39; 'skip:u 10': 0.60; 'first': 0.61; 'received:216': 0.62; 'hang': 0.65; '"".': 0.84; 'url:path': 0.84; 'results,': 0.91; 'url:site': 0.91 X-Forefront-Antispam-Report: CIP:157.56.240.117; KIP:(null); UIP:(null); IPV:NLI; H:BL2PRD0610HT003.namprd06.prod.outlook.com; RD:none; EFVD:NLI X-SpamScore: 0 X-BigFish: PS0(zzzz1ee6h1de0h1202h1e76h1d1ah1d2ahzzz2fh2a8h668h839h944hd25hf0ah1220h1288h12a5h12a9h12bdh137ah13b6h1441h1504h1537h153bh15d0h162dh1631h1758h18e1h1155h) Received-SPF: pass (mail87-co1: domain of npcinternational.com designates 157.56.240.117 as permitted sender) client-ip=157.56.240.117; envelope-from=nick.cash@npcinternational.com; helo=BL2PRD0610HT003.namprd06.prod.outlook.com ; .outlook.com ; From: Nick Cash To: "python-list@python.org" Subject: urllib2 FTP Weirdness Thread-Topic: urllib2 FTP Weirdness Thread-Index: Ac35pVT2IXI8qA7cR56nSJ0bJ/GFnA== Date: Wed, 23 Jan 2013 20:07:56 +0000 Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [70.166.238.194] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: npcinternational.com X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 26 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1358971685 news.xs4all.nl 6847 [2001:888:2000:d::a6]:33315 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:37501 Python 2.7.3 on linux This has me fairly stumped. It looks like urllib2.urlopen("ftp://some.ftp.site/path").read() will either immediately return '' or hang indefinitely. But response =3D urllib2.urlopen("ftp://some.ftp.site/path") response.read() works fine and returns what is expected. This is only an issue with urllib2= , vanilla urllib doesn't do it. The site I first noticed it on is private, but I can reproduce it with "ftp= ://ftp2.census.gov/". I've tested the equivalent code on Python 3.2.3 and get the same results, e= xcept that one time I got a socket error (may have been a spurious network = blip, though).=20 I'm at a loss as to how that could even work differently. My only guess is = that by not having a reference to the addinfourl response object, something= important is getting garbage collected or closed... that seems like a stre= tch, though. Is this a urllib2 bug, or am I crazy? -Nick Cash