Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.python > #58466

Re: ValueError: zero length field name in format - Running under Python 2.7.3?

Path csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed4.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path <rosuav@gmail.com>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.012
X-Spam-Evidence '*H*': 0.98; '*S*': 0.00; 'subject:Python': 0.06; 'error:': 0.07; 'skip:` 10': 0.07; 'valueerror:': 0.09; 'python': 0.11; 'changes': 0.15; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'repl': 0.16; 'subject: \n ': 0.16; 'subject:2.7.3': 0.16; 'subject:format': 0.16; 'subject:under': 0.16; 'weird': 0.16; 'wrote:': 0.18; 'tells': 0.24; 'fine': 0.24; 'environment': 0.24; 'script': 0.25; 'header:In-Reply-To:1': 0.27; 'am,': 0.29; 'message-id:@mail.gmail.com': 0.30; 'gives': 0.31; '25,': 0.31; 'file': 0.32; 'run': 0.32; 'running': 0.33; '(most': 0.33; 'received:google.com': 0.35; 'google': 0.35; 'really': 0.36; 'subject:?': 0.36; 'nov': 0.38; 'to:addr:python-list': 0.38; 'issue': 0.38; 'recent': 0.39; 'to:addr:python.org': 0.39; 'length': 0.61; 'first': 0.61; 'name': 0.63; 'field': 0.63; 'line,': 0.68; 'victor': 0.84; 'thing,': 0.91; '2013': 0.98
DKIM-Signature v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=MUXYDKVFv4sTbaLXANDGn9538mDvjFxLUv6ZYbIf4/U=; b=qZIWXd1Yk0PA+i3kPAl0NmetiyRhr9H490peofERSO2+GAHLw7u63Ehw/P0NwJxXkP r4xKPCJXAXpWS5dXscyDnP/ogIbB65dJiLb+hK+2z+4rVolKKCZfIPqEuxJlEU5XyTLB Ikv8v2/wwqwjbWKvqc5NBwqYDdH3Rs4CcgyoumNK1gdDun7CwznS3Sn0Ahi3JrcbLIuO WWlbe6mLs76/5/u0MyCRotNjtX7HGXap8L0jO1lpSdXNZEdGL5lNAYMssmYMw+qHwVJo p1A1y120fXPR6vfE6LennaXlhY17Kxb5B8QydXMI3csCHhruuFQkbM5+TLFx5+EoY614 kXGQ==
MIME-Version 1.0
X-Received by 10.66.231.6 with SMTP id tc6mr19718058pac.68.1383606170493; Mon, 04 Nov 2013 15:02:50 -0800 (PST)
In-Reply-To <6d41ee79-16d2-4b18-8c47-84d957d892d9@googlegroups.com>
References <6d41ee79-16d2-4b18-8c47-84d957d892d9@googlegroups.com>
Date Tue, 5 Nov 2013 10:02:50 +1100
Subject Re: ValueError: zero length field name in format - Running under Python 2.7.3?
From Chris Angelico <rosuav@gmail.com>
To python-list@python.org
Content-Type text/plain; charset=ISO-8859-1
X-BeenThere python-list@python.org
X-Mailman-Version 2.1.15
Precedence list
List-Id General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive <http://mail.python.org/pipermail/python-list/>
List-Post <mailto:python-list@python.org>
List-Help <mailto:python-list-request@python.org?subject=help>
List-Subscribe <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups comp.lang.python
Message-ID <mailman.2034.1383606180.18130.python-list@python.org> (permalink)
Lines 18
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1383606180 news.xs4all.nl 15955 [2001:888:2000:d::a6]:49014
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:58466

Show key headers only | View raw


On Tue, Nov 5, 2013 at 9:33 AM, Victor Hooi <victorhooi@gmail.com> wrote:
> However, when I run this line, I get the following error:
>
>     Traceback (most recent call last):
>       File "my_script.py", line 25, in <module>
>         LOG_FILENAME = 'my_something_{}.log'.format(datetime.now().strftime('%Y-%d-%m_%H.%M.%S'))
>     ValueError: zero length field name in format
>
>
> The weird thing, when I start a Python REPL and run that line interactively, it works fine

Google tells me that that was an issue in Python 2.6, so my first
check would be to see what `/usr/bin/env python` actually gives you -
are you running inside an environment that changes your path? Drop a
"import sys; print(sys.version)" at the top of your script and see
what it's really running as.

ChrisA

Back to comp.lang.python | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

ValueError: zero length field name in format - Running under Python 2.7.3? Victor Hooi <victorhooi@gmail.com> - 2013-11-04 14:33 -0800
  Re: ValueError: zero length field name in format - Running under Python 2.7.3? Chris Angelico <rosuav@gmail.com> - 2013-11-05 10:02 +1100
    Re: ValueError: zero length field name in format - Running under Python 2.7.3? Victor Hooi <victorhooi@gmail.com> - 2013-11-04 15:44 -0800

csiph-web