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[Tut] How to Print an Integer with Commas as Thousands Separators in Python?

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How to Print an Integer with Commas as Thousands Separators in Python?

Problem Formulation: Given an integer number. How to convert the integer to a string representation for printing or other use that has thousand separators?

Example:

  • Given an integer number 1000000.
  • You want the string representation '1,000,000'.

Method 1: f-Strings


Using the modern f-strings is, in my opinion, the most Pythonic solution to add commas as thousand-separators for all Python versions above 3.6: f'{1000000:,}'. The inner part within the curly brackets :, says to format the number and use commas as thousand separators.

>>> f'{1000000:,}' '1,000,000'

Method 2: string.format()


>>> '{:,}'.format(1000000) '1,000,000'

You use the format specification language expression '{:,}' to convert the integer number 1000000 to a string with commas as thousand separators.

  • The outer part, the curly brackets '{...}' says to use the number passed into the format() function as a basis of the formatting process.
  • The inner part within the curly brackets :, says to format the number and use commas as thousand separators.

Method 3: string.format() + string.replace() to Obtain Points as Thousand Separators


If you use points as a thousand-separator—for example in 1.000.000 as done in Europe—you can replace the commas in the comma-separated number using the suffix .replace(',', '.') in '{:,}'.format(x).replace(',','.') for any integer number x.

>>> '{:,}'.format(1000000).replace(',','.') '1.000.000'

A similar approach can be done with f-strings:

>>> f'{1000000:,}'.replace(',','.') '1.000.000'

Method 4: format()


An alternative way to add commas as thousand separators is to use the ',d' formatting syntax in the format() function.

>>> format(1000000, ',d') '1,000,000'

Source: https://stackoverflow.com/questions/1823058/how-to-print-number-with-commas-as-thousands-separators

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The post How to Print an Integer with Commas as Thousands Separators in Python? first appeared on Finxter.



https://www.sickgaming.net/blog/2021/02/...in-python/
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