copy content of file to another file using python script

Question

i have this python script that open a file dialog and select a text file than copy its content to another file.

when i open the second file it still empty

can anyone help me to solve this problem ?

OPenDirectory.py

#!/usr/bin/python

import Tkinter 
import tkFileDialog

''''Open txt files in the selected path '''
def OpenRead():

    Tkinter.Tk().withdraw()
    in_path = tkFileDialog.askopenfile(initialdir = 'C:\Users\LT GM\Downloads', filetypes=[('text files', ' TXT ')])
    readingFile = in_path.read()
    writeFile = open ('copiedFile.txt', 'w')
    writeFile.write(readingFile)
    print " we'r done!!" 
    in_path.close()
    writeFile.close()


if __name__== "__main__":
    OpenRead()

Answer 1

Line by line way of copying from file to file:

#!/usr/bin/python

from os import listdir
from os.path import isfile, join

def readWrite():
    mypath = 'D:\\'
    files = [f for f in listdir(mypath) if isfile(join(mypath, f))]
    for file in files:
        if file.split('.')[1] == 'txt':
            outputFileName = 'out-' + file
            with open(mypath+outputFileName, 'w') as w:
                with open(mypath+file) as f:
                    for l in f:
                        print l
                        w.write(l)

if __name__== "__main__":
    readWrite()

UPDATE: updated the code above, so it reads all the txt files in a specified directory and copies them into other files. You can play with directories how you like. I also added a "print l" which will print the contents of the incoming file.