python：为类实例变量名称添加一个数字

Question

I am trying to count birthdays within a class. I would like to have the year as one of the elements in the class instance like this:

{'city': 'New York', '2000': 0}

...where '2000' increments with new data

But instead I can only get:

{'city': 'New York', 'year': 2000}

---

class birthyear():
    def __init__(self,city,year):
        self.city = city

        #Why can't I do it 'manually' like so?:
        #self.'2000' = 0
        #Of course this works, but it is not what I need for further incrementing
        self.year = year
by = birthyear('New York',2000)
print (by.__dict__)

Answer 1

No need for iteration. Just type:

self.year = years

So, code would be:

class birthyear():
    def __init__(self,city,years):
        self.city = city
        self.year = years
    def yearCount(year):
        self.year += 1

Also, no need for list when you creating new instance.

>>> bh = birthyear('Nis', 2000)
>>> bh.__dict__
{'city': 'nis', 'year': 2000}