forms.py

from flaskext import wtf
from flaskext.wtf import validators



class PostForm(wtf.Form):
    self.languages = ['Java','Python','C','C++','Perl','HTML']   
    langTuples = [ (str(i) ,self.languages[i])for i in range(0,len(self.languages)) ]
    name = wtf.TextField('name', validators=[validators.Required()],)
    code = wtf.TextAreaField('code', validators=[validators.Required()])
    lang  = wtf.SelectField('language',choices=langTuples)
    
    def getLangByNo(self, no):
        return self.languages[int(no)]