If you want to change the actual value, use round as Eli suggested. However for many values and certain versions of Python this will not result be represented as the string "39.54". If you want to just round it to produce a string to display to the user, you can do
>>> print "%.2f" % (39.54484700000000)
39.54
or in newer versions of Python
>>> print("{:.2f}".format(39.54484700000000))
39.54
or with the fstrings
>>> print(f'{39.54484700000000:.2f}')
39.54
Relevant Documentation: String Formatting Operations, Built-in Functions: round
Answer from user1114 on Stack OverflowIf you want to change the actual value, use round as Eli suggested. However for many values and certain versions of Python this will not result be represented as the string "39.54". If you want to just round it to produce a string to display to the user, you can do
>>> print "%.2f" % (39.54484700000000)
39.54
or in newer versions of Python
>>> print("{:.2f}".format(39.54484700000000))
39.54
or with the fstrings
>>> print(f'{39.54484700000000:.2f}')
39.54
Relevant Documentation: String Formatting Operations, Built-in Functions: round
Use round:
Return the floating point value x rounded to n digits after the decimal point. If n is omitted, it defaults to zero. The result is a floating point number. Values are rounded to the closest multiple of 10 to the power minus n; if two multiples are equally close, rounding is done away from 0
>>> round(39.544847, 2)
39.539999999999999
>>>
Note that since 39.54 isn't exactly represantable with floating points on my PC (x86), the result is an epsilon off. But that makes no difference (and is a whole different issue with many SO questions and answers on it). If you convert it to a string properly, you'll see what you expect:
>>> "%.2f" % round(39.544847, 2)
'39.54'
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Hi all. I've recently started learning python using an online free course. The current exercise wants the student to write a function that will round a list of floating point numbers to the second decimal point, as well as keep the list in its original order. The examples used :.2f to do the rounding, but I cannot seem to get this to work.
My code:
def formatted(list):
nlist = []
for i in list:
nlist.append(i:.2f)
return nlistMy current error in Visual Studio Code is: "(" was not closed Pylance [Ln4, Col 21]
Any help in understanding this error will be appreciated. Thanks so much!
TL;DR
print('The sales amount is $', format(salesAmount, '.2f'))
Breaking it down:
Convert the number to string formatted as 2 decimal places (.2 portion) with floating point representation (f portion).
format(salesAmount, '.2f')
Now that you have a string, you join it with either pass to print or you could join to previous code with + or whatever.
'The sales amount is $' + the_formatted_number
.2f should be outside of the format method.
eg try print("{:.2f}".format(12.345678))
It's a program to calculate the price of a food order by taking all of the inputs that were inputted, denoted by the variables.
The variable CostofMeal is getting the total cost, but what does the %.2f % do before it gets to adding the prices of the variables? Why is it needed?
CostofMeal = "£", str("%.2f" % (CostofFries + CostofDrinks + CostofFillet + CostofBurger + CostChicken_Burger + CostCheese_Burger))
Thanks
As a beginner ,I just want to know the meaning of the code below
"%.2f"
print("%.2f" % total)