Python Forum

Hi everyone,

How show decimal only for none whole number ?

and when the number have decimal limit their number to two.


I've tried this :

test = 65654848 
print(f'{test:,.2f})

Output:
65,654,848.00

not what i'm looking for

I don't understand the question. What output do you want?

Thanks @ndc85430

Actually I've found a solution, not the most elegant but it work

def F_minimalNumber(x):
    f = float(x)
    if f.is_integer():
        return (f'{int(f):,}'.replace('.','_').replace(',','.').replace('_',','))
    else:
        return (f'{round(f,2):,}'.replace('.','_').replace(',','.').replace('_',','))

print(F_minimalNumber(65654848.6546843))
print(F_minimalNumber(65654848))

So it's round the number when have decimal and show maximum 2 decimal.
and show no decimal ex:(.00) when no decimal
and change the , for . for the thousand separator.

Output:
65.654.848,65
65.654.848

Simple way

#! /usr/bin/python3.8

num = 123
num2 = 123.5012569
num3 = 123.05


def numbers(num):
  if isinstance(num, float):
    print('%.2f' % round(num, 2))
  else:
    print(num)


numbers(num)
numbers(num2)
numbers(num3)

Output:
123
123.50
123.05

---

Just wanted to add one

#! /usr/bin/python3.8

num = 123
num2 = 123.5012569
num3 = 123.05
num4 = 125.00

def numbers(num):
  if num == int(num):
    print(int(num))

  elif isinstance(num, float):
    print('%.2f' % round(num, 2))
  else:
    print(num)


numbers(num)
numbers(num2)
numbers(num3)
numbers(num4)

Output:
123
123.50
123.05
125

Sorry @menator01 but your output is

Output:
123.50

but I was needed 123,50 (coma for decimal separator)

https://en.wikipedia.org/wiki/Decimal_se...arator.svg

This is only for sake of humans to improve readability. Python can't perform calculations with values formatted this way (except string concatenation).

import locale


lang, encoding = locale.getlocale()
locale.setlocale(locale.LC_ALL, lang)


x = 1337.42
print(f"{x:n}")

What is n?
This is the same as 'd', except that it uses the current locale setting to insert the appropriate number separator characters.

https://docs.python.org/3/library/string...matstrings