why am i getting error -Single '}' encountered in format string
<p>I am writing some code to see print out a list of words that I can make with the string of letters 'myLetters', but for some reason my formatting wont work. It is supposed to come out as a list of words with as many spaces between it and the value as the length of myLetters + 4  </p>

<pre><code>def scrabbleWords(myLetters):
        letterPoints = {'a':1,'b':3,'c':3,'d':2, 'e':1,'f':4,'g':2,'h':4,\
    'i':1,'j':8,'k':5,'l':1,'m':3,'n':1,'o':1,'p':3,'q':10,'r':1,'s':1,\
    't':1,'u':1,'v':4,'w':4,'x':8,'y':4}
        wordList = createWordList('wordlist.txt')
        myWords = []
        for myWord in wordList:
            x = canWeMakeIt(myWord,myLetters)
            if x == True:
                myWords.append(myWord)


        pointWordList = []
        for myWord in myWords:
            t = getWordPoints(myWord,letterPoints)
            pointWordList.append((t,myWord))
        pointWordList.sort(reverse=True)


        lenx = str(len(myLetters)+4)
        for pointValue, myWord in pointWordList:
            x = '{:'+lenx+'}{}'.format(myWord,pointValue)
            print(x)
</code></pre>
