Python Flask - Getting text from input is always null

Question

I'm trying to get the input of an input box in flask. I've set it manually in html, I can set it in python when running render_template, yet whenever I try to get the data within the input, it's always null.. Any ideas?

here's my input in HTML

<input  name="carmodel" value="model3" id="carmodel" />

and here's my python code.

carmodel = request.form.get("carmodel")
print("printing carmodel: " + str(carmodel))

Here's the button I'm clicking, I'd like to get the input value when I click the button

 <div class="mybuttonparent">
                <form method="POST" action="/order">         
                    <button  class="btn" type="submit" name='{{trim.trim}}' value='{{trim.trim}}'>{{trim.trim}}</button>
                    </form>                               
            </div>

yet when I check printing the variable in my code:

  printing carmodel: None