error coding noob program for a beginner

[montana]

ive been learning python since the last couple days and am stuck on this "project"
basically what i am making is a program where a list of picture names appear in a list on one side and when you click them they should appear on the other side in a canvas.
below i included what i have so far. when i run the program it says that "list" does not have attribute "bind". im pretty sure it does, but i cant figure this one out and i lost the source material so i cannot reference it. this is driving me nuts. please help!!!!


-------

#!/usr/bin/python

from Tkinter import *
from os import listdir

def Pushed():
friend_name = ent.get()
friend_info = tex.get(0.0,END)

friend_name = "friends/" + friend_name

fil = file(friend_name,'w')
fil.write(friend_info)
fil.close()

li.delete(0,END)
fil = listdir('friends/')
for item in fil:
li.insert(END,item)



def Press(self):
tex.delete(0.0,END)
ent.delete(0,END)


selec = li.curselection()
str = li.get(selec[0])

ent.insert(END,str)
str = 'friends/' + str

fin = file(str,'r')
outp = fin.read()
fin.close()

tex.insert(END, outp)




root = Tk()

root.geometry('500x350+270+50')


lab = Label(root,text = "Friend directory")
name = Label(root, text = "name")
butto = Button(root, text = "New Friend", command = Pushed)
ent = Entry(root, bg = 'white', width = 40)
li = Listbox(root, bg = 'white', height = 13)
tex = Text(root, bg = 'white', font=("Helvatica",15), width = 30, height = 15)

lab.grid(row = 0, columnspan = 3)
name.grid(row = 1, column = 0)
ent.grid(row = 1, column = 1)
li.grid(rowspan = 2, column = 0 )
tex.grid(row = 2, column = 1)
butto.grid(row = 3, column = 1)


fil = listdir('friends/')
for item in fil:
li.insert(END,item)


li.bind("<Double-Button-1>",Press)



root.mainloop()

[montana]

the input box screwed up my code when i submitted it. indents ARE in my program where i believe they are necessary.

[Laharl]

This is why we have the [code=python] tags, to prevent exactly that. Unfortunately, until you post your code with proper indentations, it'll be much harder to help you.

[jlm699]

The Tkinter listbox does have a bind but perhaps you have implemented the list box incorrectly.

Refer to the posting guidelines for an explanation of how to use the code tags

Your implementation looks correct so you must be mistaken about the error that you are receiving.

[tharden3]

you need to format this in the "CODE" selection so that we can copy the code right out of your post. Otherwise, no one will want to help you.

[montana]

sorry guys, its my first time using this forum. here is my code properly displayed, thanks!

from Tkinter import *
from os import *
from string import *
 
def Press():
    selec=lis.curselection()
    print selec
    str = lis.get(selec[0])
    print str
 
    tem = can.create_image(x,y, image = pic)
 
 
root = Tk()
root.geometry('700x600+270+50')
 
lab = Label(root, text = 'Name of the picture', font=('Times', 12))
can = Canvas(root, width ='500', height = '400', bg ='white')
lis = Listbox(root, height=20)
 
pic = listdir('pictures/')
 
for item in pic:
    lis.insert(0,item)
 
pic.bind("<Double-Button-1>",Press)
 
 
 
lis.focus()
lab.pack()
can.pack()
lis.pack()
 
root.mainloop()
 

[tharden3]

sorry guys, its my first time using this forum. here is my code properly displayed, thanks!

from Tkinter import *
from os import *
from string import *
 
def Press():
    selec=lis.curselection()
    print selec
    str = lis.get(selec[0])
    print str
 
    tem = can.create_image(x,y, image = pic)
 
 
root = Tk()
root.geometry('700x600+270+50')
 
lab = Label(root, text = 'Name of the picture', font=('Times', 12))
can = Canvas(root, width ='500', height = '400', bg ='white')
lis = Listbox(root, height=20)
 
pic = listdir('pictures/')
 
for item in pic:
    lis.insert(0,item)
 
pic.bind("<Double-Button-1>",Press)
 
 
 
lis.focus()
lab.pack()
can.pack()
lis.pack()
 
root.mainloop()
 

It's ok, I'm pretty new to this too, and actually I made the same mistake you made the first time I posted. Unfortunately, I can't help you with your problem... but be patient, there are many intelligent people in this community that can
help. Good Luck with your coding!

[kaarthikeyapreyan]

I was able to resolve the error that u mentioned but was not really not successful in getting the images displayed, try this and see if you are able to get going.

The problem was here

pic.bind("<Double-Button-1>",Press)

pic is a list u cannot bind an action to a list instead try this

from Tkinter import *
from os import *
from string import *
 
def Press(event):
    selec=lis.curselection()
    selected = lis.get(selec[0])
    photo1 = PhotoImage(file=selected)
    can.create_image(200, 100, image=photo1)
 
root = Tk()
root.geometry('700x600+270+50')
 
lab = Label(root, text = 'Name of the picture', font=('Times', 12))
can = Canvas(width =300, height = 300, bg ='white')
lis = Listbox(root, height=20,selectmode=EXTENDED)
 
pic = listdir('pictures/')
for item in pic:
    lis.insert(0,item)
 
lis.bind("<Double-Button-1>", Press)
 
lis.focus()
lab.pack()
can.pack()
lis.pack()
root.mainloop()

[montana]

ok so this time i have everything displaying correctly but the program still doesnt work. i have the new error message and the new code posted below

 
from Tkinter import *
from os import *
from string import *
 
#def Press(self):
 #   selec=lis.curselection()
  #  print selec
   # str = lis.get(selec[0])
    #print str
    #tem = can.create_image(image = pic)
 
 
def Press(self):
    selec=lis.curselection()
    selected = lis.get(selec[0])
    photo1 = PhotoImage(file=selected)
    can.create_image(200, 100, image=photo1)
 
 
root = Tk()
root.geometry('700x600+270+50')
 
lab = Label(root, text = 'Name of the picture', font=('Times', 12))
can = Canvas(root, width ='500', height = '400', bg ='white')
lis = Listbox(root, height=20)
 
pic = listdir('pictures/')
 
for item in pic:
    lis.insert(0,item)
 
lis.bind("<Double-Button-1>",Press)
 
 
 
lis.focus()
lab.pack()
can.pack()
lis.pack()
 
root.mainloop()
 
 

(())__ this is the error message below:
IDLE 1.2.2 ==== No Subprocess ====
>>>
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Python25\lib\lib-tk\Tkinter.py", line 1403, in __call__
return self.func(*args)
File "C:\Documents and Settings\Administrator\Desktop\first python lessons\lecture 15.pyw", line 16, in Press
photo1 = PhotoImage(file=selected)
File "C:\Python25\lib\lib-tk\Tkinter.py", line 3270, in __init__
Image.__init__(self, 'photo', name, cnf, master, **kw)
File "C:\Python25\lib\lib-tk\Tkinter.py", line 3226, in __init__
self.tk.call(('image', 'create', imgtype, name,) + options)
TclError: couldn't open "th_img322.gif": no such file or directory

[jlm699]

This error is telling you that PYthon cannot locate the image file that you have specified. When you are working with opening text files, image files, etc. it is always a good idea to use absolute paths instead of relative to avoid things like this happening. So instead of Python looking for mypic.jpg it's looking for C:\Doc and Settings\Me\My Pictures\mypic.jpg....

So on this line:
selected = lis.get(selec[0])

You could say
selected = os.path.join( my_images_path, lis.get( selec[0] ) )
** NOTE: my_images_path is the path where your images are stored, so fill it in with the proper value

That way Python will know exactly where to go for the image

[montana]

here is the most recent version of the code. i dont get any error messages anymore but the pictures do not display on the canvas. tell me what you think, any advice? whats wrong with it?

#! usr/bin/python
 
from Tkinter import *
from os import *
from string import *
 
 
def Press(event):
    selec=lis.curselection()
    selected = lis.get(selec[0])
    photo1 = PhotoImage('file=selected')
    can.create_image(200, 100, image=photo1)
 
 
root = Tk()
root.geometry('700x600+270+50')
 
lab = Label(root, text = 'Name of the picture', font=('Times', 12))
can = Canvas(root, width ='500', height = '400', bg ='white')
lis = Listbox(root, height=20)
 
pic = listdir('pictures/')
 
for item in pic:
    lis.insert(0,"pictures/"+item)
 
lis.bind("<Double-Button-1>",Press)
 
 
 
lis.focus()
lab.pack()
can.pack()
lis.pack()
 
root.mainloop()