How to format a long variable to use commas in python

Question

Hi i would like to format the variable volume before it is printed as so below, i cant seem to find a tut that helps correctly.

def volume_sphere(radius): 
    """radius = 12,742 / 2 (earth diameter)"""
    pi = 3.141592653589
    volume = ( 4 / 3 ) * pi * radius ** 3 
    format('{:20,.2f}'.format(volume))
#    volume format 0,000,000,000,000,000,000


    print ("Calculate volume of a sphere (The Earth) \nvolume = ( 4 / 3 ) * pi * radius ** 3")
    print ("Radius = ", radius, "Kms")
    print ("The volume of the earth = ", volume, "Kms3\n\n")


volume_sphere(6371)

See > https://stackoverflow.com/questions/1823058/how-to-print-number-with-commas-as-thousands-separators — Sritej Attaluri, Jul 27 '17 at 23:51
What is the expected output and your output for your input (6371)? — balki, Jul 28 '17 at 00:01
I fixed it with print ("The volume of the earth = ", '{:20,.2f}'.format(volume), "Kms3\n\n") — Goulouh Anwar, Jul 28 '17 at 01:55
now i would like to format the variable before the print is called so i dont have to do the formatting in print and the variable is always correct no matter where i call it from — Goulouh Anwar, Jul 28 '17 at 01:56

score 1 · Answer 1 · answered Jul 28 '17 at 02:53

1

This fixed the formatting.

print ("The volume of the earth = ", '{:20,.2f}'.format(volume), "Kms3\n\n")

Enjoy!!!

answered Jul 28 '17 at 02:53

Goulouh Anwar

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How to format a long variable to use commas in python

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