Print Number with Commas in Python

General Discussions
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1

How can I print a number with commas as thousands separators in Python?

For example, I want to convert the integer 1234567 into 1,234,567. It does not need to be locale-specific, meaning I just want to use commas as the separator, not considering periods or other locale-specific formatting rules.

2

If you’re looking for a straightforward and commonly used approach, the format() method is perfect for this. It’s built right into Python and gets the job done neatly. Here’s how you can use it:

number = 1234567  
print("{:,}".format(number))

This will output:

1,234,567

It’s simple and works well for most scenarios when you need to python format number with commas.

3

Building on Ambika’s answer, if you’re using Python 3.6 or later, f-strings are an even more concise and modern way to achieve this. Here’s how you can do it:

number = 1234567  
print(f"{number:,}")

This will also output:

1,234,567

F-strings are incredibly handy and are becoming the go-to choice for many Python developers for tasks like python format number with commas because they keep the code clean and readable.

4

If you’re looking for more advanced options or foresee scenarios where you might want additional control, you could consider using the locale module. While you mentioned locale-specific formatting isn’t necessary, this method can still be tailored to your needs:

import locale  
locale.setlocale(locale.LC_ALL, 'en_US.UTF-8')  # Setting locale to US  

number = 1234567  
print(locale.format_string("%d", number, grouping=True))

The output is:

1,234,567

This approach allows you to handle broader formatting cases in addition to python format number with commas, making it versatile for global applications if needed.