error running examples

[egafni]

$ python simple.py Traceback (most recent call last): File "simple.py", line 3, in from flask.ext import superadmin File "/home/erik/.virtualenvs/tmp/local/lib/python2.7/site-packages/flask/exthook.py", line 62, in load_module import(realname) File "/home/erik/.virtualenvs/tmp/local/lib/python2.7/site-packages/flask_superadmin/init.py", line 2, in from model import ModelAdmin File "/home/erik/.virtualenvs/tmp/local/lib/python2.7/site-packages/flask_superadmin/model/init.py", line 1, in from .base import ModelAdmin, AdminModelConverter File "/home/erik/.virtualenvs/tmp/local/lib/python2.7/site-packages/flask_superadmin/model/base.py", line 10, in from flask_superadmin.form import BaseForm, ChosenSelectWidget, DatePickerWidget,
File "/home/erik/.virtualenvs/tmp/local/lib/python2.7/site-packages/flask_superadmin/form.py", line 115, in class FileField(wtf.FileField): AttributeError: 'module' object has no attribute 'FileField'

[burhan]

I submitted a patch that fixes this problem.