Формат до 2 или N десятичных помещений Python
num = 123.4567
formatted_num = '{0:.2f}'.format(num) # to 2 decimal places
# formatted_num = '123.46'
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num = 123.4567
formatted_num = '{0:.2f}'.format(num) # to 2 decimal places
# formatted_num = '123.46'print(format(432.456, ".2f"))
>> 432.45
print(format(321,".2f"))
>> 321.00print ("{0:.2f}".format(a)) a_float = 3.14159
formatted_float = "{:.2f}".format(a_float)>>> foobar = 3.141592
>>> print(f'My number is {foobar:.2f} - look at the nice rounding!')
My number is 3.14 - look at the nice rounding!
>>> from decimal import *
>>> getcontext().prec = 6
>>> Decimal(1) / Decimal(7)
Decimal('0.142857')
>>> getcontext().prec = 28
>>> Decimal(1) / Decimal(7)
Decimal('0.1428571428571428571428571429')