[Tutor] Fwd: Re: Need Help Modifying a wxPython GUI (scrolling display and logging)

[Matt D]

On 06/13/2013 11:23 AM, Dave Angel wrote:
> On 06/13/2013 10:37 AM, Matt D wrote:
>> On 06/13/2013 08:22 AM, Dave Angel wrote:
>>> On 06/13/2013 12:18 AM, Matt D wrote:
>>>>
>>>>
>>>>     <SNIP>
>>>>>
>>>>>
>>>
>> Hey,
>> line 202: self.logfile.write('%s,'%(str(f))) d
>> does put the comma in properly but,
>> line 203: self.logfile.write('\n')
>> was putting the newline after each value like you said.
>> I moved this back outside of the if statement to see (i am still a
>> little unsure about the indention and i have to test) if it will create
>> a new row only when all the k,v values have been looped through.
> 
> Then put it AFTER the loop, not after the if.  It should line up with
> the for statement.  And if you mix spaces with tabs, heaven help you.
> Different people have different preferences, but I despise tabs in
> source code.  Notice that you've done it at least four places:
> 
>                 #output the value with trailing comma
>         #if the field 'duid' == 'hdu', then clear all the fields
>         return 0
>         main()
> 
> If your editor let you do that, you aren't using the right settings on
> the editor (or the right editor).  This didn't affect anything, since
> indentation doesn't matter on comments, and the other two lines are
> isolated indentations.
> 
> 
>>
>> the ordering:  yes this is quite a hole in my understanding of what is
>> going on here.  the pickle is created in a collection of pretty
>> complicated C++ code that doesn't explicitly show how the pickle is
>> ordered or whats in it even in the pickle.cc and pickle.h files. the
>> pickle files take in some sort of stream, pickle the data, and send it
>> to a message queue that the trafficpanel waits on.  i need to log this
>> pickle or at at least dump it to terminal because i am pretty sure the
>> 'source' and 'dest' fields (which currently are not available) are in
>> the pickle, albeit in a different data unit. I have read
>> "http://www.python.org/doc//current/library/pickle.html" two times
>> already and still cant find a way to print the pickle in human readable
>> form.  my understanding of pickling stinks.  The ordering at this point
>> is not so important (not nearly as important as getting the 'source'
>> 'dest' fields) because the point of the .csv file is just to import it
>> into librecalc and work time series analysis on the data manually.  at
>> some later point in the development maybe this this task can be
>> automated but for now just an unordered file will suffice.
> 
> If you want a consistent ordering, then add the line I described to your
> own source code, at module scope.  Since you have no access to (control
> over) the C++ code, you'll just have to make up your own list, as you've
> already effectively done with your GUI.  For every field that is NOT in
> the dict, you should be outputting a simple comma.
> 
> So your if test is wrong, since it will eat zeros as well as missing
> values.  And you need an else clause:
> 
>         for k,v in FIELD_LIST_NAMES:
>             #  get the value of the current TextCtrl field
>             f = field_values.get(k, None)2013-06-12 16:28:59,Unknown (0x658),
DES-OFB,
HDU,
0xa4d5010ca0bbdb0900,
0xfff,
Standard MFID (pre-2001),
00x1,
>             if not f is None:
>                 #output the value with trailing comma
>                 self.logfile.write('%s,'%(str(f)))
>             else:
>                 self.logfile.write(",")
>         self.logfile.write("\n")
> 
> And don't forget to add in the header line to your csv file, naming the
> fields that are to be used in every line.
> 
as of now the order in the .csv file is like this:

2013-06-12 16:28:59,Unknown (0x658),
00x80,
$80 Clear,
0xa4d5010ca0bbdb0900,
0xfff,
Standard MFID (pre-2001),
00x1,

and keeps repeating this order as long as HUDs are coming in.  i am
unsure why the date/time is on the same line as NAC?  Oh and i have not
tested yet with the '\n' newline command out of the if statement.  If i
have to i can modify the C++ code but was hoping not to have to do that
at this stage.  the C++ is used for what is computationally intense and
the Python is used mainly for the UI.  Any idea of a way to write the
pickle to file to see what it contains? because it is not explicit in
the C++ files, at least not as far as I can tell as of yet.
Thanks!