Python format number with commas

407 Asked by AndreaBailey in QA Testing , Asked on Apr 9, 2021

I am trying to print an integer in Python 2.6.1 with commas as thousands separators. For example, I want to show the number 1234567 as 1,234,567. How would I go about doing this? I have seen many examples on Google, but I am looking for the simplest practical way.

It does not need to be locale-specific to decide between periods and commas. I would prefer something as simple as reasonably possible.

Answered by Carolyn Buckland

In python format number with commas can be easily done by using f-strings:

num = 10000000

print(f"{num:,d}")

In this method, the part after the colon is the format specifier. The comma is the separator character you want, 

This is equivalent of using format(num, ",d") for older versions of python.

we can use my_string = '{:,.2f}'.format(my_number) to convert float value into commas as thousands separators.

my_number = 4385893.382939491

my_string = '{:,.2f}'.format(my_number)

Python format number with commas

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