def splitfile(fname):
        text_file = open(fname, "r")
        halfText = text_file.len()/2
        firstHalf = text_file.read(halfText)
        secondHalf = text_file.read(halfText)
        new_text_file1 = open(fname+"1", "n")
        text_file1.write(firstHalf)
        new_text_file2 = open(fname+"1", "n")
        text_file1.write(secondHalf)
        new_text_file1.close()
        new_text_file2.close()
       

    def getInput():
        fname = raw_input("Enter the filename of the text file you want to split in half\n\n")
        checkInput(fname)

    def checkInput(fname):
        if fname != "":
            splitfile(fname)
        else:
            prob = raw_input("\n\nTry again?\nY/N")
            if prob.lower() == "y":
                getInput()
            elif prob.lower() == "n":
               print "goodbye"

    getInput()

===============================================================

Traceback (most recent call last):
  File "C:\Documents and Settings\Yansky\workspace\test\test.py", line 28, in <module>
    getInput()
  File "C:\Documents and Settings\Yansky\workspace\test\test.py", line 16, in getInput
    checkInput(fname)
  File "C:\Documents and Settings\Yansky\workspace\test\test.py", line 20, in checkInput
    splitfile(fname)
  File "C:\Documents and Settings\Yansky\workspace\test\test.py", line 2, in splitfile
    text_file = open(fname, "r")
IOError: [Errno 2] No such file or directory: 'read_it.txt\r'