Python SyntaxError when using open() [closed]

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For some reason I keep getting a syntax error from my open statement:

def printStatsToFile():
    global dictionary
    statslines = []
    if dictionary=={}:
        createDictionary()
    for n in dictionary:
        statslines.append("Key = " + str(n) + "    Total number of words with " + str(n) + " characters = " + str(len(dictionary[n]))
    open(statsWords.dat, "w").writelines(statslines)
    print "Your stats are now available in statsWords.dat."
    mainFunction()

Here is the error:

tog:hw4 lukasolson$ python hw4_lukasolson.py
  File "hw4_lukasolson.py", line 61
    open(statsWords.dat, "w").writelines(statslines)
       ^
SyntaxError: invalid syntax

Oddly, when I comment out part of the code, everything works absolutely fine:

def printStatsToFile():
    statslines = []
    """
    global dictionary
    if dictionary=={}:
        createDictionary()
    for n in dictionary:
        statslines.append("Key = " + str(n) + "    Total number of words with " + str(n) + " characters = " + str(len(dictionary[n]))
    """
    open("statsWords.dat", "w").writelines(statslines)
    print "Your stats are now available in statsWords.dat."
    mainFunction()

And I am running python 2.7.6 so as far as I know, my syntax should be correct.

tog:hw4 lukasolson$ python
Python 2.7.6rc1 (v2.7.6rc1:4913d0e9be30+, Oct 27 2013, 20:52:11) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 

Answer 1

You're missing a closing parenthesis on the line above it.

Answer 2

You need to pass in statsWords.dat as a string. Thus, the line should look like:

open("statsWords.dat", "w").writelines(statslines)