Controlling trailing zeros with rounding?

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Controlling trailing zeros with rounding? - RedSkeleton007 - Jan-25-2018

I'm trying to print out floats in currency format, but no matter what numbers I specify for rounding parameters, it only prints out one 0 after the decimal point:

#!/usr/bin/env python3
#FormattingStuff.py

def listOfFloats():
    floatsList = [20.0007, 20.00, 3.00, 5.780001]
    print("$" + str(round(floatsList[1], 2)))
    print("$" + str(round(floatsList[1], 3)))

def main():
    listOfFloats()

main()

The output is:

Error:======= RESTART: I:/Python/Python36-32/SamsPrograms/FormattingStuff.py =======
$20.0
$20.0
>>>

Why are they the same? I'm trying to output $20.00

RE: Controlling trailing zeros with rounding? - j.crater - Jan-25-2018

round is doing the rouding mathematically, so if last decimal(s) is zero(es) it will omit them from printing. Try with the format method instead:

print('${:.2f}'.format(round(floatsList[1], 2)))