Precision in python

How can write a print statement in python that will p开发者_Go百科rint exactly 2 digits after decimal?

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print "{0:.2f}".format(your_number)

This is explained in detail in the Python Documentation.

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x = 4.12121212
print '%.2f' % x

Basically, the same way you'd do it in C with printf.

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 f = 4.55556
 print "{0:.2f}".format(f)

There is also a special module for fixed point decimals. More: http://docs.python.org/library/decimal.html

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this is django float format template tag, that may be interest for you to reading ...

at line 92 :

django float format template tag

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Another efficient way of doing this is:

import sys
a = 0.5
sys.stdout.write(str('%0.2f'%a))