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

References <6d41ee79-16d2-4b18-8c47-84d957d892d9@googlegroups.com>
Date 2013-11-05 10:02 +1100
Subject Re: ValueError: zero length field name in format - Running under Python 2.7.3?
From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.2034.1383606180.18130.python-list@python.org> (permalink)

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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

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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

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