PythonStudy-edit

import time
import webbrowser
breaks=3
break_count=0
print("This program started on "+time.ctime())
while(break_count < breaks):
time.sleep(10)#time delay
webbrowser.open("website address")
break_count += 1
##change file name##
import os

def rename_files():
file_lists = os.listdir(r"D:\prog\py")
saved_path = os.getcwd()
os.chdir(r"D:\prog\py")
for file_name in file_lists:
    print("old name:" +file_name)
    print("new name:" +file_name.translate(none,"1234567890") #delete numbers from file name
    os.rename(file_name,file_name.translate(none,"1234567890"))
os.chdir(saved_path)

rename_files()

#turtle draws square
import turtle
def draw_square():
window = turtle.Screen()
window.bgcolor("green")

pet=turtle.Turtle()
pet.speed(3)
pet.color("red")
pet.forward(100)
pet.right(90)
pet.forward(100)
pet.right(90)
pet.forward(100)
pet.right(90)
pet.forward(100)

----function----
def sum_multi(choice, *args): 
     if choice == "sum": 
         result = 0 
         for i in args: 
             result = result + i 
     elif choice == "mul": 
         result = 1 
         for i in args: 
             result = result * i 
     return result