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Hello,
I need help with creating 6 buttons can I do that using some loop and how can that be done?
each button has a different image and different text...their bg, and dimensions are the same
Also after creating all the buttons I want to make a callback function for each the function is the same as the one I have created for the first button except for the text in the label.
Please help me, I am merely a beginner.
Thank you very much,
your help is appreciated.

Here is my code: #note:the 3 radiobuttons are in the function. anything after that is not in the function; i couldn't fix the spacing

import ImageTk
from Tkinter import*

root=Tk()
root.title("Replicate DNA yourself!")
position=IntVar()

def fhelicase():
    tophelicase=Toplevel(bg="green",bd=10)
    labhelicase=Label(tophelicase,text="Where should helicase be placed?",bg="green").pack()
    bh1=Radiobutton(tophelicase,text='1',variable=position,value=1,bg="green",command=tophelicase.destroy).pack()
    bh2=Radiobutton(tophelicase,text='2',variable=position,value=2,bg="green",command=tophelicase.destroy).pack()
    bh3=Radiobutton(tophelicase,text='3',variable=position,value=3,bg="green",command=tophelicase.destroy).pack()


pol3=ImageTk.PhotoImage(file="pol3.gif")
Pol3=Button(root,height=70,width=85,text="DNA Plymerase III",image=pol3,compound="top",bg="white",command=fhelicase)
Pol3.image=pol3
Pol3.grid(row=0)

gyrase=ImageTk.PhotoImage(file="gyrase.gif")
Gyrase=Button(root,text="gyrase",height=70,width=85,image=gyrase,compound="top",bg="white")
Gyrase.image=gyrase
Gyrase.grid(row=1)

ligase=ImageTk.PhotoImage(file="ligase.gif")
Ligase=Button(root,text="Ligase",height=70,width=85,image=ligase,compound="top",bg="white")
Ligase.image=ligase
Ligase.grid(row=2)

ssb=ImageTk.PhotoImage(file="ssbb.gif")
Ssb=Button(root,text="ssb",height=70,width=85,image=ssb,compound="top",bg="white")
Ssb.image=ssb
Ssb.grid(row=3)

primase=ImageTk.PhotoImage(file="primase.gif")
Primase=Button(root,text="primase",height=70,width=85,image=primase,compound="top",bg="white")
Primase.image=primase
Primase.grid(row=4)

helicase=ImageTk.PhotoImage(file="helicase.gif")
Helicase=Button(root,text="Helicase",height=70,width=85,image=helicase,compound="top",bg="white")
Helicase.image=helicase
Helicase.grid(row=5)

pol1=ImageTk.PhotoImage(file="pol1.gif")
Pol1=Button(root,text="DNA PolymeraseI",height=70,width=85,image=pol1,compound="top",bg="white")
Pol1.image=pol1
Pol1.grid(row=6)

window.mainloop()
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Last Post by slasel
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  • 1

    >bh1=Radiobutton(tophelicase,text='1',variable=position,value=1,bg="green",command=tophelicase.destroy).pack() Print bh1 to see what it contains and you should see that there is no reason to store the return from pack(), i.e. just use Radiobutton(tophelicase,text='1',variable=position,value=1,bg="green", command=fhelicase).pack() Read More

0

To pass an argument in the button command use lambda:

try:
    # Python2
    import Tkinter as tk
except ImportError:
    # Python3
    import tkinter as tk

def click(s):
    """called with lambda"""
    if s == "one":
        root.title("Button one has been clicked")
    else:
        root.title("Button two has been clicked")


root = tk.Tk()

b1 = tk.Button( text="one", command=lambda: click("one") )
b1.pack(padx=150, pady=10)

b2 = tk.Button( text="two", command=lambda: click("two") )
b2.pack(pady=10)

root.mainloop()

You could create your buttons in a loop, but it would be quite cumbersome. It would be difficult to maintain a meaningful variable name for each button. Since you only have 6 buttons it wouldn't be worth it.

Edited by sneekula

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bh1=Radiobutton(tophelicase,text='1',variable=position,value=1,bg="green",command=tophelicase.destroy).pack()

Print bh1 to see what it contains and you should see that there is no reason to store the return from pack(), i.e. just use

   Radiobutton(tophelicase,text='1',variable=position,value=1,bg="green",
               command=fhelicase).pack()

Edited by woooee

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A typical example ...

'''tk_button_loop1.py
create five Tkinter image buttons using a for loop
'''

# needs Python25 or higher
from functools import partial

try:
    # Python2
    import Tkinter as tk
except ImportError:
    # Python3
    import tkinter as tk

def click(val):
    s = "Button " + val + " clicked"
    root.title(s)  # test

root = tk.Tk()

# assume image files are in working folder
# or use ./img/led1.gif etc.
imagefile_list = [
'led1.gif',
'led2.gif',
'led3.gif',
'led4.gif',
'led5.gif']

button_label_list = [
'one',
'two',
'three',
'four',
'five']

print(list(zip(button_label_list, imagefile_list)))  # test

mybutton = list(range(len(button_label_list)))
print(mybutton)  # test
n = 0
for mylabel, myfile in zip(button_label_list, imagefile_list):
    print(mylabel, myfile)  # test
    myimage = tk.PhotoImage(file=myfile)
    # partial takes care of function and argument
    cmd = partial(click, mylabel)
    mybutton[n] = tk.Button(root, text=mylabel, image=myimage, 
        compound='top', command=cmd)
    mybutton[n].pack(side='left', padx=5, pady=3)
    # make this button's image persistent
    mybutton[n].image = myimage
    n += 1

root.mainloop()

Display --> http://prntscr.com/kzjpb

Edited by vegaseat

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I have tried it with 2 buttons but it only displayed one...
what am i missing?

import ImageTk
from Tkinter import*
from functools import partial
root=Tk()
position=IntVar()

def funct():
    global top
    top=Toplevel(bg="green",bd=10)
    lab=Label(top,text="Where should it be placed?",bg="green").pack()
    bh1=Radiobutton(top,text='1',variable=position,value=1,bg="green",command=inn()).pack()
    bh2=Radiobutton(top,text='2',variable=position,value=2,bg="green",command=inn()).pack()
    bh3=Radiobutton(top,text='3',variable=position,value=3,bg="green",command=inn()).pack()

def inn():
    print position.get()
    if position.get()==1:
        xx,yy=10,10
    elif position.get()==2:
        xx,yy=60,60
    elif position.get()==3:
        xx,yy=110,110
    window.create_image(xx,yy,image=pol3)
    top.destroy()

mglst=["pol3.gif","gyrase.gif"]
txtlst=["DNA Pol3","Gyrase"]
mxlst=list(zip(txtlst,mglst))
print mxlst
btnz=list(range(len(txtlst)))
n=0
for txt, img in mxlst:
    imag=ImageTk.PhotoImage(file=img)
    btnz[n]=Button(root,text=txt,image=imag,height=70,width=85,compound="top",bg="white",command=funct)
    btnz[n].grid(row=n)
    btnz[n].image=imag
    n+=n

window=Canvas(root,width=800,height=550,bg="white")
window.grid(column=1, rowspan=7,row=0)
root.mainloop()
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ooopsy! I see thanx!
the buttons show now but when I click on one I get the following error:

Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 1410, in __call__
    return self.func(*args)
  File "C:\Documents and Settings\admen\Desktop\shortVersion.py", line 12, in funct
    bh1=Radiobutton(top,text='1',variable=position,value=1,bg="green",command=inn()).pack()
  File "C:\Documents and Settings\admen\Desktop\shortVersion.py", line 24, in inn
    window.create_image(xx,yy,image=pol3)
UnboundLocalError: local variable 'xx' referenced before assignment
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position.get() most likely returns a string
in your if statements compare to a string not an integer

Edited by Lardmeister

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:( that didn't solve the problem! still i get the same error

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Did you correct your code to this?

def inn():
    print position.get()
    if position.get()=='1':
        xx,yy=10,10
    elif position.get()=='2':
        xx,yy=60,60
    elif position.get()=='3':
        xx,yy=110,110
    window.create_image(xx,yy,image=pol3)
    top.destroy()
0

You bind the button press to the return from the function=inn(), not the function=inn. The button call later on to "funct" is coded correctly so note the difference. Also, you still mix grid and pack which can cause problems.

Edited by woooee

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