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

Groups > comp.lang.python > #65950

Re: Flag control variable

Show all headers | View raw

On 02/11/2014 10:59 AM, luke.geelen@gmail.com wrote:
>
>
> Look at the error message.  Carefully!  It says, quite clearly, the call
>
> to int is being passed a string "Adafruit-Raspberry-Pi-Python-Code",
>
> which of course can't be converted to an integer.
>
>
>
> Now the question is how you ran the program in such a manner that
>
> sys.argv[3] has such an odd value.
>
> What does your command line look like?  You didn't tell us, but that's
>
> where the trouble is.
>
>
>
> Gary Herron
> how do you meen "what does your command line look like?"

When you run this python script,  *how* do you do so?

Perhaps you type something like:
   python script.py 21 '*' 42
If not, then how do you supply values for the script's sys.argv?

If it is like that, then I see the most likely potential problem. The 
asterisk character (on Linux at least) is considered a wild-card 
character -- it is replaced by a list of local files so your command becomes
   python script.py 21 somefile1 somefile2 somefile3 <...and so on.> 42

If you put it in quotes, then it won't be expanded  (at least in the 
usual Linux shells -- you system may vary) and you'll end up with the 
asterisk in sys.argv[2] and the number in sys.argv[3].

Gary Herron

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

Thread

Flag control variable luke.geelen@gmail.com - 2014-02-11 09:29 -0800
  Re: Flag control variable Larry Martell <larry.martell@gmail.com> - 2014-02-11 12:44 -0500
  Re: Flag control variable Peter Otten <__peter__@web.de> - 2014-02-11 18:46 +0100
  Re: Flag control variable luke.geelen@gmail.com - 2014-02-11 10:00 -0800
  Re: Flag control variable luke.geelen@gmail.com - 2014-02-11 10:16 -0800
    Re: Flag control variable Tim Chase <python.list@tim.thechases.com> - 2014-02-11 12:32 -0600
  Re: Flag control variable luke.geelen@gmail.com - 2014-02-11 10:37 -0800
    Re: Flag control variable Tim Chase <python.list@tim.thechases.com> - 2014-02-11 12:51 -0600
    Re: Flag control variable Peter Otten <__peter__@web.de> - 2014-02-11 19:51 +0100
      Re: Flag control variable luke.geelen@gmail.com - 2014-02-11 11:01 -0800
        Re: Flag control variable luke.geelen@gmail.com - 2014-02-11 11:06 -0800
          Re: Flag control variable Gary Herron <gary.herron@islandtraining.com> - 2014-02-11 11:26 -0800
          Re: Flag control variable Tim Chase <python.list@tim.thechases.com> - 2014-02-11 13:28 -0600
            Re: Flag control variable luke.geelen@gmail.com - 2014-02-11 11:54 -0800
              Re: Flag control variable Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-02-11 20:02 +0000
        Re: Flag control variable Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2014-02-11 21:14 +0200
        Re: Flag control variable Gary Herron <gary.herron@islandtraining.com> - 2014-02-11 11:20 -0800
    Re: Flag control variable Gary Herron <gary.herron@islandtraining.com> - 2014-02-11 10:55 -0800
      Re: Flag control variable luke.geelen@gmail.com - 2014-02-11 10:59 -0800
        Re: Flag control variable Gary Herron <gary.herron@islandtraining.com> - 2014-02-11 11:09 -0800
        Re: Flag control variable Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-02-11 19:08 +0000
  Re: Flag control variable luke.geelen@gmail.com - 2014-02-11 11:55 -0800
    Re: Flag control variable Gary Herron <gary.herron@islandtraining.com> - 2014-02-11 12:19 -0800
      Re: Flag control variable luke.geelen@gmail.com - 2014-02-11 13:18 -0800
        Re: Flag control variable Gary Herron <gary.herron@islandtraining.com> - 2014-02-11 15:47 -0800
          Re: Flag control variable luke.geelen@gmail.com - 2014-02-11 21:09 -0800
            Re: Flag control variable Dave Angel <davea@davea.name> - 2014-02-12 00:23 -0500
              Re: Flag control variable luke.geelen@gmail.com - 2014-02-12 07:32 -0800
                Re: Flag control variable Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-02-12 15:42 +0000
                Re: Flag control variable Dave Angel <davea@davea.name> - 2014-02-12 13:51 -0500
            Re: Flag control variable Alain Ketterlin <alain@dpt-info.u-strasbg.fr> - 2014-02-12 17:10 +0100
              Re: Flag control variable luke.geelen@gmail.com - 2014-02-12 09:15 -0800
            Re: Flag control variable Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-02-12 20:46 -0500

csiph-web