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

Victor Hooi victorhooi at gmail.com
Tue Nov 5 00:44:36 CET 2013


Hi,

You're right - it was sudo playing up with the virtualenv.

The script was in /opt, so I was testing with sudo to get it to run.

I should have setup a service account, and tested it with that =).

$ python sync_bexdb.py
2.7.3 (default, Jan  7 2013, 11:52:52)
[GCC 4.4.6 20120305 (Red Hat 4.4.6-4)]

$ sudo python sync_bexdb.py
[sudo] password for victor:
2.6.6 (r266:84292, Jul 10 2013, 22:48:45)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-3)]

Cheers,
Victor

On Tuesday, 5 November 2013 10:02:50 UTC+11, Chris Angelico  wrote:
> On Tue, Nov 5, 2013 at 9:33 AM, Victor Hooi <victorhooi at 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



More information about the Python-list mailing list