Re: Increase value in hash table

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Date	Wed, 23 Jan 2013 23:33:09 +0800
Subject	Re: Increase value in hash table
From	moonhk <moonhkt@gmail.com>
To	Oscar Benjamin <oscar.j.benjamin@gmail.com>
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Show key headers only | View raw

Works.

     prndev = line.split()
         # print line
         for key in prndev :
             if key in 'lpr':
                val = prndev[5].replace("-P","")
                if val not in printque:
                   printque[val] = 1
                else:
                   printque[val] = printque[val] + 1
             if key in "/dev/null":
                 val='null'
                 if val not in printque:
                    printque[val] = 1
                 else:
                    printque[val] = printque[val] + 1


On Wed, Jan 23, 2013 at 6:12 PM, Oscar Benjamin
<oscar.j.benjamin@gmail.com> wrote:
> On 23 January 2013 07:26, moonhkt <moonhkt@gmail.com> wrote:
>> Hi Al
>>
>> I have Data file have below
>>
>> Data file
>> V1
>> V2
>> V3
>> V4
>> V4
>> V3
>>
>> How to using count number of data ?
>>
>> Output
>> V1 = 1
>> V2 = 1
>> V3 =2
>> V4 = 2
>>
>>
>>
>> # Global Veriable
>> printque = {}
>> in def have below
>>
>> printque[val] =  printque[val] + 1
>>
>> I have below error
>>   File "xprintlogchk.py", line 78, in chklog
>>     printque[val] =  printque[val] + 1
>> KeyError: 'nan'
>
> You can't retrieve the value of printque[val] if you haven't yet added
> an entry with the key val to the dict. Try this:
>
> if val not in printque:
>     printque[val] = 1
> else:
>     printque[val] = printque[val] + 1
>
>
> Oscar



-- 
moonhkt
GMT+8

Thread

Increase value in hash table moonhkt <moonhkt@gmail.com> - 2013-01-22 23:26 -0800
  Re: Increase value in hash table Chris Rebert <clp2@rebertia.com> - 2013-01-22 23:34 -0800
    Re: Increase value in hash table moonhkt <moonhkt@gmail.com> - 2013-01-23 01:23 -0800
  Re: Increase value in hash table Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-01-23 10:12 +0000
    Re: Increase value in hash table Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-23 10:47 +0000
      Multiple postings [was Re: Increase value in hash table] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-23 21:54 +1100
        Re: Multiple postings [was Re: Increase value in hash table] rusi <rustompmody@gmail.com> - 2013-01-23 06:00 -0800
    Re: Increase value in hash table Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-23 10:46 +0000
    Re: Increase value in hash table Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-23 10:46 +0000
    Re: Increase value in hash table Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-01-23 10:47 +0000
  Re: Increase value in hash table moonhk <moonhkt@gmail.com> - 2013-01-23 23:33 +0800
    Re: Increase value in hash table moonhkt <moonhkt@gmail.com> - 2013-01-23 07:39 -0800
      Re: Increase value in hash table Dave Angel <d@davea.name> - 2013-01-23 17:35 -0500
  Re: Increase value in hash table Vito De Tullio <vito.detullio@gmail.com> - 2013-01-24 19:30 +0100

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