Python KeyError: '' for automatic language detection
<p>i'm doing an automatic language detection in python using stopwords</p>

<p>but i'm getting KeyError when trying to test the code.
this is the code</p>

<pre><code>import nltk
from nltk.corpus import stopwords

def scoreFunction(wholetext):
    dictiolist={}
    scorelist={}
    NLTKlanguage = ["dutch","finnish","german","italian","portuguese","spanish","turkish","danish","english"," french","hungarian","norwegian","russian","swedish"]
    FREElanguages = [""]
    languages= NLTKlanguages + FREElanguages
    for lang in NLTKlanguages:
        dictiolist[lang]=stopwords.words(lang)
        tokens=nltk.tokenize.word_tokenize(wholetext)
        tokens=[t.lower() for t in tokens]
        freq_dist=nltk.FreqDist(tokens)
    for lang in languages:
        scorelist[lang]=0
    for word in freq_dist.keys()[0:20]:
        if word in dictiolist[lang]:
            scorelist[lang]+=1
    return scorelist

def whichLanguage(scorelist):
    maximum=0
    for item in scorelist:
        value = scorelist[item]
        if maximum&lt;value:
            maximum = value
            lang = item
    return lang
</code></pre>

<p>whene i run it scoreFunction("hillo my name is osfar and i'm genius") 
i get the error 
    Traceback (most recent call last): File "", line 1, in  </p>

<pre><code>scoreFunction("hello my name is osfar and i'm very genius") 
File "C:/Users/osama1/Desktop
/fun-test", line 17, in scoreFunction 
if word in dictiolist[lang]:
KeyError: ''
</code></pre>
