Convert Float value to two point decimal

Question

I need to find the way for converting the Float value in to the two point decimal.

I have a API code which is implemented already which will be returning the two Float value.

For example consider it is returning the values as follows: 293.019999504

But I need to make it as 293.01 instead of 293.019999504

As well as it should be handling 0 as 0.00

I am unable to modify the API implementation backend or DB tables.

I need to implement this in views.py where I am getting the values using the API calls.

Need a way to achieve this in pythonic way.

Answer 1

You should do as follows:

a = 293.019999504
print("{0:.2f}".format(a))
>> 293.02

Answer 2

IIUC you want to use the round function:

round(293.019999504,2)
Out[1]:
293.02

Note that it will round your number (so 293.019 will end up as 293.02), if you don't want that, you can use floor:

from math import floor
floor(100*293.019999504)/100

Answer 3

如果你真的想要向下舍入，你需要像

这样的东西

    int(293.019999504 * 100) / 100.0

但是，处理会计事项的正确方法是定点计算，如下所述：https://docs.python.org/2/library/decimal.html。