Groups > comp.lang.python > #196991

FileNotFoundError thrown due to file name in file, rather than file itself

From	"Loris Bennett" <loris.bennett@fu-berlin.de>
Newsgroups	comp.lang.python
Subject	FileNotFoundError thrown due to file name in file, rather than file itself
Date	2024-11-11 15:05 +0100
Organization	FUB-IT, Freie Universität Berlin
Message-ID	<87v7wt986z.fsf@zedat.fu-berlin.de> (permalink)

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Hi,

I have the following in my program:

    try:
        logging.config.fileConfig(args.config_file)
        config = configparser.ConfigParser()
        config.read(args.config_file)
        if args.verbose:
            print(f"Configuration file: {args.config_file}")
    except FileNotFoundError:
        print(f"Error: configuration file {args.config_file} not found.  Exiting.")
        sys.exit(0)

and when I ran the program I got the error

  Error: configuration file /usr/local/etc/sc_mailer not found.  Exiting.

However, this file *does* exist and *can* be read.  By checking the
'filename' attribute of the exception I discovered that the problem was
the log file defined *in* the config file, namely

  [handler_fileHandler]
  class=FileHandler
  level=DEBUG
  formatter=defaultFormatter
  args=('/var/log/my_prog.log', 'a')

This log file did not exist.  The exception is thrown by 

  logging.config.fileConfig(args.config_file)

My questions are:

1. Should I be surprised by this behaviour?
2. In terms of generating a helpful error message, how should one
   distinguish between the config file not existing and the log file not
   existing?

Cheers,

Loris

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FileNotFoundError thrown due to file name in file, rather than file itself "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-11 15:05 +0100
  Re: FileNotFoundError thrown due to file name in file, rather than file itself Left Right <olegsivokon@gmail.com> - 2024-11-11 17:04 +0100
    Re: FileNotFoundError thrown due to file name in file, rather than file itself "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-12 10:15 +0100
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Left Right <olegsivokon@gmail.com> - 2024-11-12 20:10 +0100
        Re: FileNotFoundError thrown due to file name in file, rather than file itself Greg Ewing <greg.ewing@canterbury.ac.nz> - 2024-11-13 14:04 +1300
          Re: FileNotFoundError thrown due to (Posting On Python-List Prohibited) Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-13 02:13 +0000
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Mats Wichmann <mats@wichmann.us> - 2024-11-12 13:28 -0700
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Chris Angelico <rosuav@gmail.com> - 2024-11-13 07:34 +1100
      Re: FileNotFoundError thrown due to file name in file, rather than file itself "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-13 08:11 +0100
        Re: FileNotFoundError thrown due to file name in file, rather than file itself Barry <barry@barrys-emacs.org> - 2024-11-14 16:01 +0000
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Roel Schroeven <roel@roelschroeven.net> - 2024-11-13 10:12 +0100
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Michael Torrie <torriem@gmail.com> - 2024-11-13 21:07 -0700
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Left Right <olegsivokon@gmail.com> - 2024-11-14 08:03 +0100
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Chris Angelico <rosuav@gmail.com> - 2024-11-14 19:13 +1100
      Re: FileNotFoundError thrown due to file name in file, rather than file itself D'Arcy Cain <darcy@VybeNetworks.com> - 2024-11-13 06:37 -0700
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Ethan Furman <ethan@stoneleaf.us> - 2024-11-14 09:32 -0800
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Michael Torrie <torriem@gmail.com> - 2024-11-14 08:44 -0700
        Re: FileNotFoundError thrown due to file name in file, rather than file itself Jon Ribbens <jon+usenet@unequivocal.eu> - 2024-11-14 18:12 +0000
  Re: FileNotFoundError thrown due to file name in file, rather than file itself dieter.maurer@online.de - 2024-11-11 18:24 +0100
  Re: FileNotFoundError thrown due to (Posting On Python-List Prohibited) Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-11 21:05 +0000
  Re: FileNotFoundError thrown due to file name in file, rather than file itself Chris Angelico <rosuav@gmail.com> - 2024-11-12 12:17 +1100
    Re: FileNotFoundError thrown due to file name in file, rather than file itself "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-12 10:00 +0100
      Re: FileNotFoundError thrown due to file name in file, rather than file itself dieter.maurer@online.de - 2024-11-13 19:36 +0100
      Re: FileNotFoundError thrown due to file name in file, rather than file itself Kushal Kumaran <kushal@locationd.net> - 2024-11-13 14:40 -0800
    Re: FileNotFoundError thrown due to file name in file, rather than file itself "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-12 10:03 +0100

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