why do I empty state but value is not empty

[bobwatcherx]

i have problem why i set self.new_todo == "" . but input text value not clear

my code
import pynecone as pc

class State(pc.State):
todo: list
new_todo: str
show_modal:bool

def addnewTodo(self):
    if not self.new_todo == "":
        self.todo.append(self.new_todo)
        print(self.todo)
        self.new_todo = "" 

def delete_todo(self,mytodo):
    for x in self.todo:
        if x == mytodo:
            self.todo.remove(mytodo)
        else:
            print("Not FOund")


def edit_todo(self,mytodo):
    pass

def list_todo(mytodo):
return pc.list(
pc.list_item(
pc.hstack(
pc.text(mytodo,size=20),
pc.button("edit",
bg="blue",color="white",
on_click=State.edit_todo(mytodo)
),
pc.button("delete",
bg="red",color="white",
on_click=State.delete_todo(mytodo)
)

        )
    )  
    ) 

def index() -> pc.Component:
return pc.center(
pc.vstack(
pc.heading("crud Todo", size="md"),
pc.input(
on_change=State.set_new_todo,
placeholder="new name"
),
pc.button(
"add new todo",
bg="purple",
color="white",
on_click=State.addnewTodo
),
pc.foreach(State.todo,list_todo)
),

)

Add state and page to the app.

app = pc.App(state=State)
app.add_page(index)
app.compile()