problem with dictionaries
Steve Holden
steve at holdenweb.com
Wed Apr 23 08:09:22 EDT 2008
Simon Strobl wrote:
> Hello,
>
> the idea of the following program is to parse a frequency list of the
> form FREQUENCY|WORD, to store the frequency of a word in a dictionary
> (and to do some things with this information later).
>
> I have done this many many times. Suddenly, it does not work any more:
> The value frq[key] is different from the value that key has in the
> file 'my_frqlist.txt'.
>
> I am using Python 2.5.1
>
> Any hints?
>
> Simon
>
> ================================================
>
> #!/usr/bin/python
>
> import sys
>
> frqlist = open('my_frqlist.txt', 'r')
>
> # my_frqlist looks like this:
> # 787560608|the
> # 434879575|of
> # 413442185|and
> # 395209748|to
> # 284833918|a
> # 249111541|in
> # 169988976|is
>
> frq = {}
>
> for line in frqlist:
> line = line.rstrip()
> frequency, word = line.split('|')
> frq[word] = int(frequency)
>
> for key in frq.keys():
> print key, frq[key]
>
<flippancy>You musts have missed the memo. The rules of the universe
changed at 0834 UST yesterday, and all functioning Python programs
stopped working.</flippancy>
More seriously, *something* must have changed - it's probably not the
rules of the universe though. Are the files now coming from a different
source (Windows rather than Unix or vice versa)?
As you read in the data, insert a
print "%r: %s %s" % (line, frequency, word)
to see exactly what is being processed and how it is getting split.
regards
Steve
--
Steve Holden +1 571 484 6266 +1 800 494 3119
Holden Web LLC http://www.holdenweb.com/
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