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Re: try/exception - error block

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Hi Alan.

Yep, the err file in the exception block gets created. and the weird
thing is it matches the time of the abrtd information in the
/var/log/messages log..

Just nothing in the file!



On Sun, Aug 3, 2014 at 4:01 PM, Alan Gauld <alan.gauld@btinternet.com> wrote:
> On 03/08/14 18:52, bruce wrote:
>
>>> but in all that.. no one could tell me .. why i'm not getting any
>>> errs/exceptions in the err file which gets created on the exception!!!
>
>
> Does the file actually get created?
> Do you see the print statement output - are they what you expect?
>
> Did you try the things Steven suggested.
>
>
>>>    except Exception, e:
>>>      print e
>>>      print "pycolFac1 - error!! \n";
>>>      name=subprocess.Popen('uuidgen -t',
>>> shell=True,stdout=subprocess.PIPE)
>>>      name=name.communicate()[0].strip()
>>>      name=name.replace("-","_")
>
>
> This is usually a bad idea. You are using name for the process and its
> output. Use more names...
> What about:
>
> uuid=subprocess.Popen('uuidgen -t',shell=True,stdout=subprocess.PIPE)
> output=uuid.communicate()[0].strip()
> name=output.replace("-","_")
>
>>>      name2="/home/ihubuser/parseErrTest/pp_"+name+".dat"
>
>
> This would be a good place to insert a print
>
> print name2
>
>>>      ofile1=open(name2,"w+")
>
>
> Why are you using w+ mode? You are only writing.
> Keep life as simple as possible.
>
>>>      ofile1.write(e)
>
>
> e is quite likely to be empty
>
>>>      ofile1.write(aaa)
>
>
> Are you sure aaa exists at this point? Remember you are catching all errors
> so if an error happens prior to aaa being created this will
> fail.
>
>>>      ofile1.close()
>
>
> You used the with form earlier, why not here too.
> It's considered better style...
>
> Some final comments.
> 1) You call sys.exit() several times inside
> the try block. sys.exit will not be caught by your except block,
> is that what you expect?.
>
> 2) The combination of confusing naming of variables,
> reuse of names and poor code layout and excessive commented
> code makes it very difficult to read your code.
> That makes it hard to figure out what might be going on.
> - Use sensible variable names not a,aaa,z, etc
> - use 3 or 4 level indentation not 2
> - use a version control system (RCS,CVS, SVN,...) instead
>   of commenting out big blocks
> - use consistent code style
>      eg with f as ... or open(f)/close(f) but not both
> - use the os module (and friends) instead of subprocess if possible
>
> 3) Have you tried deleting all the files in the
> /home/ihubuser/parseErrTest/ folder and starting again,
> just to be sure that your current code is actually
> producing the empty files?
>
> 4) You use tmpParseDir in a couple of places but I don't
> see it being set anywhere?
>
>
> That's about the best I can offer based on the
> information available.
>
> --
> Alan G
> Author of the Learn to Program web site
> http://www.alan-g.me.uk/
> http://www.flickr.com/photos/alangauldphotos
>
> --
> https://mail.python.org/mailman/listinfo/python-list

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Re: try/exception - error block bruce <badouglas@gmail.com> - 2014-08-03 17:33 -0400

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