how to change 39.54484700000000 to 39.54 and using python [duplicate]

Question

Possible Duplicate:
python limiting floats to two decimal points

i want to set 39.54484700000000 to 39.54 using python ,

how to get it ,

thanks

Answer 1

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 2

How about round

>>> import decimal
>>> d=decimal.Decimal("39.54484700000000")
>>> round(d,2)
39.54

Answer 3

You can use the quantize method if you're using a Decimal:

In [24]: q = Decimal('0.00')

In [25]: d = Decimal("115.79341800000000")

In [26]: d.quantize(q)
Out[26]: Decimal("115.79")