'Allowing user to input how many decimals wanted, calculate percentage

numerator = int(input("Please enter the numerator: "))
denominator = int(input("Please enter the denominator: "))
decimal = int(input("Please enter the number of decimal places: "))
percent = numerator/denominator
format_string = "{:.2f}".format(percent)

I changed the .2 in the format_string to decimal as in {:.decimalf} to allow the user to decide how many decimal places. Python does not allow me to use a variable for this for some reason.

python input

Solution 1:^[1]

You can do it like this:

format_string = "{:.{decimal}f}".format(percent, decimal=decimal)

or even:

format_string = "{:.{}f}".format(percent, decimal)

Solution 2:^[2]

You can escape braces in format string by doubling them

decimal_places = 4
format_string = "{{:.{}f}}".format(decimal_places)  # '{:.4f}'
format_string.format(1/2)  # '0.5000'

Sources

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Source: Stack Overflow

Solution	Source
Solution 1	Lukasz Wiecek
Solution 2	Iain Shelvington

'Allowing user to input how many decimals wanted, calculate percentage

Solution 1:[1]

Solution 2:[2]

Sources

Related Questions

Solution 1:^[1]

Solution 2:^[2]