nonlocal-closure.py

def make_account(balance):
  def withdraw(amount):
    nonlocal balance
    if balance > amount:
      balance -= amount
     return balance
  
  def deposit(amount):
    nonlocal balance
    balance += amount
    return balance
  
  return { "withdraw": withdraw, "deposit": deposit }

my_account = make_account(1000)
my_account["deposit"](500) # returns 1500
my_account["withdraw"](200) # returns 1300

your_account = make_account(2000)
your_account["deposit"](100) # returns 2100
your_account["withdraw"](200) # returns 1900