باگ‌گیری

price = '2500'
qty = '3'
total = float(price) * int(qty)

actions = ['add', 'edit', 'report']
commands = []
for action in actions:
    commands.append(lambda a=action: a)
results = [c() for c in commands]

def valid(buy, sell, qty):
    return all(0 <= x < float('inf') for x in (buy, sell, qty))

products = {'pen': {'qty': 3}}
product = products['pen']
product['qty'] -= 2

data = {'products': {}}
products = data.get('products', {})
sales = data.get('sales', [])

products = ['pen', 'cup', 'pencil']
table = []

def refresh(query=''):
    table.clear()
    table.extend(p for p in products if query in p)

def search():
    refresh('pen')

def run(action):
    action()
    if action is not search: refresh()

run(search)

class Entry:
    def __init__(self):
        self.text = 'pen'
    def grid(self):
        return None
    def get(self):
        return self.text

entry = Entry()
entry.grid()
name = entry.get()

def check_sell(qty, stock):
    if qty <= 0:
        raise ValueError('تعداد باید مثبت باشد')
    if qty > stock:
        raise ValueError('موجودی کافی نیست')
    return True