Can't get single checkbox to render in Flask WTF -

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i've been searching long time examples on how use checkboxes flask wtf, seems either there no example or there complex ones involve list of checkboxes.

i did find 1 example in miguel's blog here, i'm not able checkbox render. here's did:

first off, form class:

class loginform(form):     email = textfield("email address", validators=[validators.required()])     password = passwordfield("password", validators=[validators.required()])     remember_me = booleanfield("remember me", default = false)     submit = submitfield("login")

and in template:

<form class="form-signin" role="form" action="{{ url_for('login') }}" method="post">     {{ form.hidden_tag() }}     <div class="form-group">         {{ form.email.label }}         {{ form.email ( ** {'class' : 'form-control'} ) }}     </div>     <div class="form-group">         {{ form.password.label }}         {{ form.password ( ** {'class' : 'form-control'} ) }}     </div>     <div class="form-group">         {{ form.remember_me }} remember me     </div>                </form>

in final output of form, checkbox missing:

enter image description here

if see generated html, field missing:

<form class="form-signin" role="form" action="/login" method="post">                 <div style="display:none;"><input id="csrf_token" name="csrf_token" type="hidden" value="1457326344##3036eeab4ffa39494ee92247925a30a88a69432f"><input id="next" name="next" type="hidden" value=""></div>             <div class="form-group">                 <label for="email">email address</label>                 <input class="form-control" id="email" name="email" type="text" value="">             </div>             <div class="form-group">                 <label for="password">password</label>                 <input class="form-control" id="password" name="password" type="password" value="">             </div>             <div class="form-group">                  remember me                          </div>             <div class="form-group">                 <input class="btn btn-primary btn-lg" id="submit" name="submit" type="submit" value="login">             </div>                       </form>

curiously, if try add {{ form.remember_me.label }} template, exception jinja2.exceptions.undefinederror: 'flask_security.forms.loginform object' has no attribute 'remember_me'.

i came across solutions mention custom widgets, i'm hoping hear won't have go route simple, single checkbox.

what doing wrong? if nothing, what's shortest, painless way accomplish this?

~~~~update~~~~

it looks there's weird behavior @ work here. field form.remember seems produce checkbox, , form.remember.label produces default "remember me" label. using other name causes aforesaid exception occur.

i found mistake. import from security import * caused flask-security template loginform creep namespace, causing weird behavior. needed make changes forms, importing form flask.ext.wtf rest of fields wtforms. hope helps somebody!


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