Python Add Comma Into Number String

Question

Using Python v2, I have a value running through my program that puts out a number rounded to 2 decimal places at the end:

like this:

print (\"Total          


        

Answer 1

This is not particularly elegant but should work too :

a = "1000000.00"
e = list(a.split(".")[0])
for i in range(len(e))[::-3][1:]:
    e.insert(i+1,",")
result = "".join(e)+"."+a.split(".")[1]

Answer 2

In Python 2.7 and 3.x, you can use the format syntax :,

>>> total_amount = 10000
>>> print("{:,}".format(total_amount))
10,000

>>> print("Total cost is: ${:,.2f}".format(total_amount))
Total cost is: $10,000.00

This is documented in PEP 378 -- Format Specifier for Thousands Separator and has an example in the Official Docs "Using the comma as a thousands separator"

Answer 3

'{:20,.2f}'.format(TotalAmount)