Косяк с размерами scrollbar

#! /usr/bin/python
file='dbm'
import dbm
db=dbm.open(file,'w')
class Dragdrop():
    def add_dragable(self, widget):
        widget.bind("<ButtonPress-1>", self.on_start)
        widget.bind("<B1-Motion>", self.on_drag)
        widget.bind("<ButtonRelease-1>", self.on_drop)
        widget.configure(cursor="hand1")
 
    def on_start(self, event):
        # you could use this method to create a floating window
        # that represents what is being dragged.
        pass
 
    def on_drag(self, event):
        # you could use this method to move a floating window that
        # represents what you're dragging
        pass
 
    def on_drop(self, event):
        # find the widget under the cursor
        x,y = event.widget.winfo_pointerxy()
        target = event.widget.winfo_containing(x,y)
        try:
            target.configure(image=event.widget.cget("image"))
        except:
            pass
 
from tkinter import *
data = '''#define image_width 15
#define image_height 15
static unsigned char image_bits[] = {
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x1c, 0x30, 0x0c, 0x60, 0x06,
   0x60, 0x06, 0xc0, 0x03, 0xc0, 0x03, 0x60, 0x06, 0x60, 0x06, 0x30, 0x0c,
   0x38, 0x1c, 0x00, 0x00, 0x00, 0x00 };'''
def takt(*a,**b):
    print('takt',a,b)
def on_configure(event):
    canvasscrl.configure(scrollregion=canvasscrl.bbox('all'))
 
win = Tk()
win.title('window')
win.overrideredirect(False)
win.iconify()
win.withdraw()
win.deiconify()
win.minsize(width=200, height=100)
win.state()
win.resizable()
 
 
menubar = Menu(win)
filemenu = Menu(menubar, tearoff=0)
filemenu.add_command(label="New", command=takt)
filemenu.add_separator()
menubar.add_cascade(label="File", menu=filemenu)
win.config(menu=menubar)
 
 
ff=Frame(win)
canvasscrl = Canvas(ff)
scrollbar = Scrollbar(ff, command=canvasscrl.yview)
canvasscrl.configure(yscrollcommand = scrollbar.set)
canvasscrl.bind('<Configure>', on_configure)
frame = Frame(canvasscrl)
canvasscrl.create_window((0,0), window=frame, anchor='nw')
 
class row():
    num=0
    def __init__(self,name):
        self.num=row.num
        self.name=name
        self.value=StringVar()
        self.value.set(db[name])
 
        self.label=Label(frame,text=self.name)
        self.label.grid(row=self.num,column=0)
        self.label.bind('<ButtonPress-1>',self.delete)
        self.entry=Entry(frame,textvar=self.value)
        self.entry.grid(row=self.num,column=1)
        self.entry.bind('<Return>',self.edit)
 
        row.num+=1
    def edit(self,ignore):
        db[self.name]=self.value.get()
    def delete(self,ignore):
        del db[self.name]
        self.label.destroy()
        self.entry.destroy()
        
newname=StringVar()
newvalue=StringVar()
def addnew(ignore):
    if newname.get()=='' or newvalue.get()=='':
        return
    db[newname.get()]=newvalue.get()
    row(newname.get())
    canvasscrl.configure(scrollregion=canvasscrl.bbox("all"))
    canvasscrl.yview_moveto(1)
 
 
 
for name in db:
    r=row(name)
 
f=Frame(win)
a=Entry(f,textvar=newname)
a.bind('<Return>',addnew)
b=Entry(f,textvar=newvalue)
b.bind('<Return>',addnew)
Label(f,text='New name:').pack(side=LEFT)
a.pack(side=LEFT)
Label(f,text='New value').pack(side=LEFT)
b.pack(side=LEFT)
f.pack()
ff.pack()
scrollbar.pack(side=RIGHT, fill='y')
canvasscrl.pack()
 
win.mainloop()
#image canvas menu event scrollbar

row(newname.get())
canvasscrl.configure(scrollregion=canvasscrl.bbox("all"))
canvasscrl.yview_moveto(1)