Todo application in python

# Todo app in Python
# Git hub -> github.com/AyanUpadhya
# Email -> ayanU881@gmail.com


from tkinter import *
from tkinter import messagebox as ms
import pickle


root = Tk()
root.title('Todo @ Code Tech')
root.geometry('300x360')
root.config(bg="#2f3232")


#FUNCTIONS
task=StringVar()

def add():
    new_task= task.get()

    if new_task:
        task_list.insert(END,new_task)
        task_entry.delete(0,END)
    else:
        return ms.showinfo('Error',"No task found")

def load():
    task_list.delete(0,END)
    try:
        tasks = pickle.load(open('taskdata.dat','rb'))
        for task in tasks:
            task_list.insert(END,task)
    except:
        ms.showwarning(title="warnning!",message="Taskdata not found")

def delete():
    task_list.delete(ANCHOR)


def save():
    tasks = task_list.get(0,task_list.size())
    pickle.dump(tasks,open('taskdata.dat','wb'))
    ms.showinfo('Done',"Tasks Saved")

#events
def add_task(event):
    add()

def delete_task(event):
    delete()

# tasks frame
tasks_frame = Frame(root)
tasks_frame.pack(fill="both")

#scrollbar
tasks_scrollbar = Scrollbar(tasks_frame)
tasks_scrollbar.pack(side= RIGHT, fill='y')

#listbox
task_list= Listbox(tasks_frame,width=50,selectbackground='gray',font=15)
task_list.pack(fill="both")

#entry widget
task_entry=Entry(root,width=50,textvariable=task,font=15)
task_entry.pack(pady=2,expand=True,fill="both")

#buttons
add_btn=Button(root,text='Add',width=50,font=('Helvetica',11,'bold'),command=add)
add_btn.pack()

load_btn=Button(root,text='Load',width=50,font=('Helvetica',11,'bold'),command=load)
load_btn.pack()

del_btn=Button(root,text="Delete Task",width=50,font=('Helvetica',11,'bold'),command=delete)
del_btn.pack()

save_btn=Button(root,text="Save Tasks",width=50,font=('Helvetica',11,'bold'),command=save)
save_btn.pack()

#configurations
task_list.config(yscrollcommand=tasks_scrollbar.set)
tasks_scrollbar.config(command=task_list.yview)

#event handle
root.bind('<Return>',add_task) #hit enter to add task
root.bind('<Delete>',delete_task)


root.mainloop()