Re: [Tutor] All Entry Boxes taking the same value

[Pooja Bhalode]

Hi Peter and Alan,

Yes, thank you for your suggestions. I really appreciate it. I would look
into a proper tutorial and try to follow it up. The suggestion regarding
this piece of code worked when I tried StringVar instead of " ".

Thank you once again.
Yours truly,
Pooja


On Fri, Mar 31, 2017 at 6:28 AM, Alan Gauld via Tutor 
wrote:

> On 30/03/17 21:35, Pooja Bhalode wrote:
>
> > *However, when I execute it, and type something in one entrybox, it shows
> > in all the entry boxes using multi-cursor option. *
>
> I'm not sure whats going on and don;t habe tome to experiment but one
> thing I noticed:
>
> > average = [" ", " ", " "]
> > lowest = [" ", " ", " "]
> > highest = [" ", " ", " "]
> ...
> > for i in range(len(reactants)):
> > *Entry*(root, textvariable =* average[i]*, width = 15,
> > state=DISABLED).grid(row = 3+i, column = 1, sticky = W)
>
> You are setting textvariable to a string but it should be
> a StrinVar object. You could probably fix that by changing
> your data definitions to StringVars:
>
> average = [StringVar(), StringVar(), StringVar()]
>
> I don't know if that will fix the problem but its probably
> a good thing to do anyhow...
>
>
> --
> Alan G
> Author of the Learn to Program web site
> http://www.alan-g.me.uk/
> http://www.amazon.com/author/alan_gauld
> Follow my photo-blog on Flickr at:
> http://www.flickr.com/photos/alangauldphotos
>
>
> ___
> Tutor maillist  -  Tutor@python.org
> To unsubscribe or change subscription options:
> https://mail.python.org/mailman/listinfo/tutor
>
___
Tutor maillist  -  Tutor@python.org
To unsubscribe or change subscription options:
https://mail.python.org/mailman/listinfo/tutor

Re: [Tutor] All Entry Boxes taking the same value

[Alan Gauld via Tutor]

On 30/03/17 21:35, Pooja Bhalode wrote:

> *However, when I execute it, and type something in one entrybox, it shows
> in all the entry boxes using multi-cursor option. *

I'm not sure whats going on and don;t habe tome to experiment but one
thing I noticed:

> average = [" ", " ", " "]
> lowest = [" ", " ", " "]
> highest = [" ", " ", " "]
...
> for i in range(len(reactants)):
> *Entry*(root, textvariable =* average[i]*, width = 15,
> state=DISABLED).grid(row = 3+i, column = 1, sticky = W)

You are setting textvariable to a string but it should be
a StrinVar object. You could probably fix that by changing
your data definitions to StringVars:

average = [StringVar(), StringVar(), StringVar()]

I don't know if that will fix the problem but its probably
a good thing to do anyhow...


-- 
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
http://www.flickr.com/photos/alangauldphotos


___
Tutor maillist  -  Tutor@python.org
To unsubscribe or change subscription options:
https://mail.python.org/mailman/listinfo/tutor

Re: [Tutor] All Entry Boxes taking the same value

[Peter Otten]

Pooja Bhalode wrote:

> average = [" ", " ", " "]

> for i in range(len(reactants)):
> Entry(root, textvariable = average[i], width = 15,
> state=DISABLED).grid(row = 3+i, column = 1, sticky = W)

Hint: What is passed as textvariable? What should be?

Unfortunately the Entry accepts both StringVar instances and names of 
StringVar instances which automagically spring into existence -- and " " is 
a valid name...

Pooja, I have been watching your efforts to write one or more python/tkinter 
scripts mostly via try and error for a while now. It is obvious that it 
doesn't work as there are so many more ways to go wrong than right.

I recommend that you see if you can find a tutorial for both Python and 
Tkinter, and work through that for a few weeks, say. Once you have a general 
understanding of programming your progress will be faster, and you won't 
destroy the result of the previous step with the changes you make in the 
next.

___
Tutor maillist  -  Tutor@python.org
To unsubscribe or change subscription options:
https://mail.python.org/mailman/listinfo/tutor

[Tutor] All Entry Boxes taking the same value

[Pooja Bhalode]

Hi,
I am working on a GUI application where I have a multiple number of entry
boxes and I created a loop for the label and entry boxes depending upon the
number of times it needs to be shown. However, I tried assigning different
values to each label and entry boxes in the for loop using lists, so that I
can save different values obtained from the entry boxes in the entry lists
and use them later.

*However, when I execute it, and type something in one entrybox, it shows
in all the entry boxes using multi-cursor option. *

Can someone please tell me how I can avoid this error?
I am trying to put a for loop since I need to create the gui such that the
number of times it needs to be done would be unknown. Hence, the way I went
about this was to take an upper limit of 3 and thus, reacoriginal = [" ", "
", " "]. This can be used as an upper limit and the required number can
thus fit in as needed.
Here, for example, I have taken the required number as two. this would be
later modified.

Code:
from Tkinter import *

root = Tk()
root.geometry("500x350")

# Variables:
reacoriginal = [" ", " ", " "]
conca = [1,0,0]
print conca[0]
concunit = [" ", " ", " "]

concunit11 = StringVar()
concunit21 = StringVar()
concunit31 = StringVar()
conca1 = IntVar()
conca1.set(1)
concb1 = IntVar()
concc1 = IntVar()

average = [" ", " ", " "]
lowest = [" ", " ", " "]
highest = [" ", " ", " "]
averageformulation = [" ", " ", " "]
lowestformulation = [" ", " ", " "]
highestformulation = [" ", " ", " "]

print average
reactants = ["A", "B", "C"]
for i in range(len(reactants)):
Label(root, text = "Experimental Range").grid(row = 0, column = 0, sticky =
W)
labeldown = Label(root, text = "For Parameter Estimation")
labeldown.grid(row = 1, column = 0, sticky = W)
labeldown.config(state='disable')

Label(root, text = "Average ").grid(row = 2, column = 1, sticky = W)
Label(root, text = "Lowest ").grid(row = 2, column = 2, sticky = W)
Label(root, text = "Highest").grid(row = 2, column = 3, sticky = W)
Label(root, text = "Units").grid(row = 2, column = 4, sticky = W)
Checkbutton(root, text = reactants[i], variable = conca[i]).grid(row = 3+i,
column = 0, sticky = W)
optionlist2 = [u'\u03bcmol/L',  'mmol/L','mol/L']
concunitdrop = OptionMenu(root, concunit[i], *optionlist2)
concunitdrop.config(width = 8)
concunitdrop.grid(row = 3+i, column = 4, sticky = W)

for i in range(len(reactants)):
*Entry*(root, textvariable =* average[i]*, width = 15,
state=DISABLED).grid(row = 3+i, column = 1, sticky = W)
*Entry*(root, textvariable = *lowest[i]*, width = 15).grid(row = 3+i,
column = 2, sticky = W)
*Entry*(root, textvariable = *highest[i]*, width = 15).grid(row = 3+i,
column = 3, sticky = W)

root.mainloop()
___
Tutor maillist  -  Tutor@python.org
To unsubscribe or change subscription options:
https://mail.python.org/mailman/listinfo/tutor