Calling of variable in python
<p>Hii I have a requirement of calling the variable in function which is having it declaration and definition in another function.Could any one help me please.</p>

<pre><code>import sys
import os
import tkMessageBox
from Tkinter import *
from tkCommonDialog import Dialog
import shutil
import tkFileDialog
import win32com.client

win = Tk()
win.title("Copying the Directory to specified location")
win.geometry("600x600+200+50")
win.resizable()
global src
global des
class Copy():
    #global src
    #global des
    def __init__(self):
        def srce():
            src = tkFileDialog.askdirectory(title = "The source folder is ")
            textboxsrc.delete(0,END)
            textboxsrc.insert(0,src)
            print src
            return src

        textboxsrc = Entry(win, width="70")
        textboxsrc.insert(0,'Enter master file name')
        textboxsrc.pack()
        textboxsrc.place(relx=0.40, rely=0.06, anchor=CENTER)
        bu = Button(text = "Source",font = "Verdana 12 italic bold",bg = "Purple",fg= "white", command= srce)
        bu.pack(fill =X, expand=YES)
        bu.place(relx=0.85, rely=0.06, anchor=CENTER)

        def dest():
            des = tkFileDialog.askdirectory(title = "TheDestination folder is ")
            textboxdes.delete(0,END)
            textboxdes.insert(0,des)
            print des
            return des

        textboxdes = Entry(win, width="70")
        textboxdes.insert(0,'Enter master file name')
        textboxdes.pack()
        textboxdes.place(relx=0.40, rely=0.13, anchor=CENTER)
        bu1 = Button(text = "Destination",font = "Verdana 12 italic",bg = "Purple",fg= "white", command= dest)
        bu1.pack(fill =X, expand=YES)
        bu1.place(relx=0.85, rely=0.13, anchor=CENTER)

        def start():
            #global src
            #global des
            #abc = os.path.dirname(src)
            #dgh = os.path.dirname(des)
            try:
                shutil.copy(src,des)
            except :
                tkMessageBox.showwarning("Copying file",  "Error while copying\n(%s)" )

        bn =Button(text = "Copy",font = "Verdana 12 italic", bg = "Purple",fg= "white",command=start)
        bn.pack(fill =X, expand = YES)
        bn.place(relx=0.50, rely=0.25, anchor=CENTER)

obj= Copy()
#obj.source(win)
#obj.destination(win)
win.mainloop()
</code></pre>

<p>Here,I get an error in the start() function. giving me the problem of accepting src and des variable.</p>
