I want to loop through a list and create a field with each item in list 

from odoo import models, fields


class SchoolStaff(models.Model):
    _name = 'school.staff'

    field_names = ['name', 'age', 'position']
    for field in field_names:
        locals()[field] = fields.Char()

 id="school_staff_form_view" model="ir.ui.view">
        name="name">school.staff.form.view
        name="model">school.staff
        name="arch" type="xml">
            
                
                    
                        t-foreach="o.field_names" t-as="field">

                            name="t-esc(field)"/>