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

[Matt D]

-------- Original Message --------
Subject: Re: [Tutor] Need Help Modifying a wxPython GUI (scrolling
display and	logging)
Date: Thu, 13 Jun 2013 00:17:44 -0400
From: Matt D <md123 at nycap.rr.com>
To: Dave Angel <davea at davea.name>

On 06/12/2013 09:44 PM, Dave Angel wrote:
> On 06/12/2013 09:23 PM, Matt D wrote:
>>
>>> There are other ways a script might change the current directory.  For
>>> example, some naive scripts use os.chdir()
>>>
>>> But how is it you don't know what the current directory was when the
>>> code ran?   A simply pwd can tell you, if your prompt doesn't already
>>> reveal it.
>>>
>>>
>> hey i found the logfile.  just took a few minutes of looking round.  the
>> file is logged all out of order
> 
> Do you have more than one thread?  Perhaps you have a race condition.
> 
>> so i have some work to do on that
>> formatting issue.  if you have a sec can you take a look at my code
>> please?
>>
>> def update(self, field_values):
> 
>>
>>          #  logger code---------------
>>          #  first write the CURRENT date/time
>>         self.logfile.write('%s,'%(str(strftime("%Y-%m-%d %H:%M:%S",
>> gmtime()))))
> 
> The return value of strftime is already a str, so why do you call str()
> on it?
> 
>>         #  loop through each of the TextCtrl objects
>>         for k,v in self.fields.items():
> 
> items() returns an unordered list;  what order did you actually want?
> 
>>              #  get the value of the current TextCtrl field
>>             f = field_values.get(k, None)
>>             if f:
>>                  #output the value with trailing comma
>>                 self.logfile.write('%s,'%(str(f)))
>>                 self.logfile.write('\n')
> 
> That looks like a newline, not a comma
> 
>>         #end logger code ----------------
>>
>>          #if the field 'duid' == 'hdu', then clear all the fields
>>         if field_values['duid'] == 'hdu':
>>             self.clear()
>>         #loop through all TextCtrl fields storing the key/value pairs
>> in k, v
>>         for k,v in self.fields.items():
> 
> Same ordering problem here.  If you have a specific order in mind,
> you'll need to preserve it in a list, not in a dict.
> 
>>             # get the pickle value for this text control
>>             f = field_values.get(k, None)
>>             # if the value is empty then set the new value
>>             if f:
>>                 v.SetValue(f)
>>
>>
>> When i open the .csv file the fields are all out of order.  what i want
>> is have them all in one row beginning with the date/time.  and idea?
>> Thanks!
>>
>>
> 
> A dictionary is unsorted, so those two are probably your problem.  As I
> mentioned above, you can't count on the items() order.
> 
> Of course, self.items might not really be a dict.  This fragment doesn't
> prove that one way or another.
> 
> 
yes the .py file has TextCtrl fields that get there values from a
pickled dictionary.  Another peice of the code watches a thread for the
pickle.  this is why i didnt use a list.  I have been unable to find a
nice way to just make a list with the items i need.  would be nice to
have that simplicity.
What you said is true, the the list is unordered.  More importantly the
new line comes in at the wrong point.  I want all the values in a row
starting with time.  from there i will look for a way to remove some
unwanted items and ordering the others.
I attached the .py file for you to see the whole thing hoping this is
not too presumptuous.  Thanks.



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