Convert a value to a “formatted” representation, as controlled by _formatspec. The interpretation of _formatspec will depend on the type of the value argument; however, there is a standard formatting syntax that is used by most built-in types: Format Specification Mini-Language.
Currently, “tabulate” makes a distinction between integers and floats. However, the “intfmt” parameter applies the “digit grouping” format exclusively to integers, excluding floats. This prevents a decimal containing more than 3 numbers from being grouped. For example, the number “1234567.89” should be displayed in this format: “1,234,567.89”.
Suggestion
Implement functionality to perform “digit grouping”, regardless of whether the column type is a float or integer. This includes changing the “intfmt” parameter to “digitgrp” or something similar. In the source code, if it is an integer or float number, the format assigned in the “digitgrp” parameter would be applied to it.
Conflicts
Applying this feature will be in conflict with the issue https://github.com/astanin/python-tabulate/issues/318. I suggest to first finishing and merging the solutions related to this issue, then working on this feature.
Feature: for numbers, apply the “digit grouping” for integers and floats.
Context
Decimal separator
A decimal separator is a symbol used to separate the integer part from the fractional part of a number written in decimal form (e.g., “.” in 12.45).
https://en.wikipedia.org/wiki/Decimal_separator
Digit grouping
In general, digits should be grouped and separated either by commas or by narrow gaps (never a period/full point).
https://en.wikipedia.org/wiki/Wikipedia:Manual_of_Style/Dates_and_numbers#Grouping_of_digits
Python
format(value, format_spec='')
Convert a value to a “formatted” representation, as controlled by _formatspec. The interpretation of _formatspec will depend on the type of the value argument; however, there is a standard formatting syntax that is used by most built-in types: Format Specification Mini-Language.
https://docs.python.org/3.11/library/functions.html#format
Format Specification Mini-Language
“Format specifications” are used within replacement fields contained within a format string to define how individual values are presented.
grouping_option ::= "_" | ","https://docs.python.org/3.11/library/string.html#formatspec
Description
Currently, “tabulate” makes a distinction between integers and floats. However, the “intfmt” parameter applies the “digit grouping” format exclusively to integers, excluding floats. This prevents a decimal containing more than 3 numbers from being grouped. For example, the number “1234567.89” should be displayed in this format: “1,234,567.89”.
Suggestion
Implement functionality to perform “digit grouping”, regardless of whether the column type is a float or integer. This includes changing the “intfmt” parameter to “digitgrp” or something similar. In the source code, if it is an integer or float number, the format assigned in the “digitgrp” parameter would be applied to it.
Conflicts
Applying this feature will be in conflict with the issue https://github.com/astanin/python-tabulate/issues/318. I suggest to first finishing and merging the solutions related to this issue, then working on this feature.