Python格式前导零和数千个逗号

Question

I know that I can use the following to pad leading zeros to a string:

>>> qty = 1
>>> '{:06}'.format(qty)
'000001'

But can I also use the format function to also add thousands separators to get:

'000,001'

I know this can be done by manipulating the text, but can it be achieved with the format() function ?