[Python] Como se utiliza o texto do text_input python-kivy?

Estou tendo dificuldades em usar o texto do text_input para armazenar no banco de dados.

Código Python:

from kivy.app import App
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.core.window import Window
from kivy.utils import get_color_from_hex

from sqlalchemy import select, MetaData, Table
from sqlalchemy import create_engine


Window.clearcolor = get_color_from_hex("#a52429")
__version__ = "0.1"

engine = create_engine('sqlite:///divinodb.db')
metadata = MetaData()
tab = Table('cadastro', metadata, autoload=True, autoload_with=engine)
tabela = select([tab])
print(tabela)
results = engine.execute(tabela).fetchall()
print(results)


class PaginaInicial(Screen):
pass

class PageEsqsenha(Screen):
pass

class PageCadastro(Screen):
pass


class ScreenManagement(ScreenManager):
def switch_to_pageCadastro(self):
self.current = 'pageCadastro'

def switch_to_paginaInicial(self):
self.current = 'paginaInicial'

def switch_to_pageEsqsenha(self):
self.current = 'pageEsqsenha'

def switch_page_salvar(self):

p_nome = str(self.root.ids.name.text)
p_senha = str(self.root.ids.senhaa.text)
p_email = str(self.root.ids.email.text)
p_data = int(self.root.ids.data.text)
p_endereco = str(self.root.ids.endereco.text)
p_numero = int(self.root.ids.numero.text)
p_comp = str(self.root.ids.complemento.text)
p_refer = str(self.root.ids.refer.text)
p_dd = int(self.root.ids.dd.text)
p_telres = int(self.root.ids.telres.text)
p_ddd = int(self.root.ids.ddd.text)
p_telcel = int(self.root.ids.telcel.text)

con = engine.connect()
ins = tab.insert()

con.execute(ins, [
dict(nome=p_nome, senha=p_senha, email=p_email, data=p_data, endereco=p_endereco,
numero=p_numero, complemento=p_comp, refer=p_refer, dd=p_dd, telres=p_telres, ddd=p_ddd, telcel=p_telcel)
])
con.close()
print(results)
self.current = 'paginaInicial'

# Database connection

class DivinoSaborApp(App):
def build(self):
self.root = ScreenManagement()
return self.root
if __name__ == '__main__':
DivinoSaborApp().run()


Código Kivy:

<ScreenManagement>:
PaginaInicial:
PageCadastro:
PageEsqsenha:

#:import C kivy.utils.get_color_from_hex


<PaginaInicial>:
name:'paginaInicial'
FloatLayout:

Image:
source:"images/super.jpg"
size_hint1, .3)
pos_hint:{"center_x":.5, "center_y":.65}

Image:
source:"images/Logo.jpg"
size_hint.8, .6)
pos_hint:{"center_x":.5,"center_y":.9}

Label:
text:"Usuario: "
size_hintNone,None)
pos_hint:{"center_x":.37, "center_y":.43}
bold:True
font_size:"15sp"

Label:
text:"Senha: "
size_hintNone,None)
pos_hint:{"center_x":.37,"center_y":.36}
bold:True
font_size:"15sp"

TextInput:
id: usuario
pos_hint:{"center_x":.59, "center_y":.43}
size_hint.25,.05)
multiline:False
write_tab: False
TextInput:
id: senha
pos_hint:{"center_x":.59, "center_y":.36}
size_hint.25,.05)
multiline:False
write_tab:False
password:True

Button:
text:"Entrar"
pos_hint:{"center_x":.5,"center_y":.28}
size_hint.3,.05)
background_down:''
background_color:[16,16,16,0.1]

Button:
text:"Esqueceu sua senha?"
size_hint.25,.03)
pos_hint:{"center_x":.5,"center_y":.2}
bold:True
font_size:"8sp"
on_release:app.root.switch_to_pageEsqsenha()
background_color:[1,1,1,0]
Button:
text:"Cadastre-se!"
size_hint.15,.03)
pos_hint:{"center_x":.5,"center_y":.15}
bold:True
font_size:"8sp"
on_release:app.root.switch_to_pageCadastro()
background_color:[1,1,1,0]


<PageCadastro>:
name: 'pageCadastro'
FloatLayout:
Label:
rulesonly:True
text:"Nome completo: "
size_hint.3,.06)
pos_hint:{"center_x":.5, "center_y":.95}
bold:True
font_size:"15sp"
Label:
rulesonly:True
text:"Senha: "
size_hint.3,.06)
pos_hint:{"center_x":.5, "center_y":.85}
bold:True
font_size:"15sp"
Label:
text:"E-mail:"
size_hintNone,None)
pos_hint:{"center_x":.5, "center_y":.75}
bold:True
font_size:"15sp"
Label:
text:"Data de Nascimento:"
size_hintNone,None)
pos_hint:{"center_x":.5, "center_y":.65}
bold:True
font_size:"15sp"
Label:
text:"Endereco: "
rulesonly:True
size_hintNone,None)
pos_hint:{"center_x":.5, "center_y":.55}
bold:True
font_size:"15sp"
Label:
text:"Numero: "
size_hintNone,None)
pos_hint:{"center_x":.38, "center_y":.45}
bold:True
font_size:"15sp"
Label:
text:"Complemento: "
size_hintNone,None)
pos_hint:{"center_x":.61, "center_y":.45}
bold:True
font_size:"13sp"
Label:
text:"Referencia: "
size_hintNone,None)
pos_hint:{"center_x":.5, "center_y":.35}
bold:True
font_size:"15sp"
Label:
text:"Telefone residencial: "
size_hintNone,None)
pos_hint:{"center_x":.5, "center_y":.25}
bold:True
font_size:"15sp"
Label:
text:"Celular/WhatsApp: "
size_hintNone,None)
pos_hint:{"center_x":.5, "center_y":.15}
bold:True
font_size:"15sp"

Button:
size_hint:.2,.06
pos_hint:{'left':1, 'center_y':.03}
on_release: app.root.switch_to_paginaInicial()
background_color235,36,31,0)
text: 'Voltar'
Button:
size_hint:.2,.06
pos_hint:{'right':1,'center_y':.03}
on_release: app.root.switch_page_salvar()
background_color235,36,31,0)
text: 'Avançar'
TextInput:
id: name
pos_hint:{"center_x":.5, "center_y":.9}
size_hint.4,.05)
multiline:False
write_tab: False
TextInput:
id: senhaa
pos_hint:{"center_x":.5, "center_y":.8}
size_hint.4,.05)
multiline:False
write_tab: False
password: True
TextInput:
id: email
pos_hint:{"center_x":.5, "center_y":.7}
size_hint.4,.05)
multiline:False
write_tab: False
TextInput:
id: data
pos_hint:{"center_x":.5, "center_y":.6}
size_hint.4,.05)
multiline:False
write_tab: False
TextInput:
id: endereco
pos_hint:{"center_x":.5, "center_y":.5}
size_hint.4,.05)
multiline:False
write_tab: False
TextInput:
id: numero
pos_hint:{"center_x":.37, "center_y":.4}
size_hint.14,.05)
multiline:False
write_tab: False
input_filter:'int'
TextInput:
id: complemento
pos_hint:{"center_x":.6, "center_y":.4}
size_hint.2,.05)
multiline:False
write_tab: False
input_filter:'int'
TextInput:
id: refer
pos_hint:{"center_x":.5, "center_y":.3}
size_hint.4,.05)
multiline:False
write_tab: False
TextInput:
id: dd
pos_hint:{"center_x":.35, "center_y":.2}
size_hint.1,.05)
multiline:False
write_tab: False
input_filter:'int'
TextInput:
id: telres
pos_hint:{"center_x":.57, "center_y":.2}
size_hint.26,.05)
multiline:False
write_tab: False
input_filter:'int'
TextInput:
id: ddd
pos_hint:{"center_x":.35, "center_y":.1}
size_hint.1,.05)
multiline:False
write_tab: False
input_filter:'int'
TextInput:
id: telcel
pos_hint:{"center_x":.57, "center_y":.1}
size_hint.26,.05)
multiline:False
write_tab: False
input_filter:'int'

<PageEsqsenha>:
name: 'pageEsqsenha'
FloatLayout:
Button:
size_hint:.2,.06
pos_hint:{'left':1, 'center_y':.03}
on_release: app.root.switch_to_paginaInicial()
background_color235,36,31,0)
text: 'Voltar'

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