'Python discount function

This is a discount function in python that applies a discount to a specified price. You get a 10% discount if you are a member, and you get a 5% discount if the item is on sale.

def calculate_price(orig_price, is_member="Yes", is_on_sale="Yes"):
    member_discount = 0.10
    sale_discount = 0.05
    
    if is_member == True:
        if is_on_sale == True:
            price = orig_price - (orig_price * (member_discount + sale_discount))
        
        else:
            price = orig_price - (orig_price * member_discount)
        
    elif is_member == False:
        if is_on_sale == True:
            price = orig_price - (orig_price * sale_discount)
        else:
            price = orig_price
    return price

orig_price = float(input("Enter price: "))
is_member = input("Member? (yes or no): ")
is_on_sale = input("sale? (yes or no): ")

print(calculate_price(orig_price, is_member="yes", is_on_sale="yes"))

My problem is when I try to run it I get the error:

File "", line 23, in File "", line 17, in calculate_price UnboundLocalError: local variable 'price' referenced before assignment

Anyone know why this is and how to fix it?

python function

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'Python discount function

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