Date entry in box format issue

[PeroPuri]

have you seen the tkcalendar widget? found hereThe benefit is it uses the calendar so you get leap years, super easy to use:

#from my interactive prompt.
>>> from tkcalendar import Calendar, DateEntry
>>> from tkinter import Tk
>>> root= Tk()
>>> date_entry= DateEntry(root)
>>> date_entry.pack()
>>> now= date_entry.get()
>>> now
'4/19/20'
>>> mo_dy_yr= now.split('/')
>>> mo= now[0]
>>> mo
'4'
>>> dy= mo_dy_yr[1]
>>> dy
'19'
>>> yr= mo_dy_yr[2]
>>> yr
'20'

but if you're going to create a new one-

self.birthday = StringVar(self)
self.birthday.set('')
self.birthday=DateEntry(self, years=(1935, 2020))
self.birthday.place(relx=0.22, rely=0.16, height=25, width=100)

first to create a string var and set it none then you over right the namespace and make it a dateentry widget. if you want the information you need .get()
at the bottom of your script I included a test:

if __name__ =='__main__':
    root= tk.Tk()    
    d=DateEntry(root,years=('2000','2020'))
    d.pack()
    def get_entry():
        txt=d.get()
        print(txt)
    btn= tk.Button(root,text='hello',command= get_entry)
    btn.pack()

I did get an error when I tried to enter 1 in the year:

File "/home/pi/misc/yk_homeade_datepicker.py", line 46, in _validate
if v1 > 1 and len(value) < l:
TypeError: '>' not supported between instances of 'str' and 'int'

I did saw the calendar script which is really beautiful, but I'm afraid it might need a lot of time and increment the chance of error input if used for birthday.
For what I've understand the script I'm trying to use gives back a dict and I don't know how to access it since it usually gives me back the "TypeError: get() takes 1 positional argument but 2 were given" error and I don't know why.