python print format number of digits code example

Example 1: python format float

>>> x = 13.949999999999999999
>>> x
13.95
>>> g = float("{:.2f}".format(x))
>>> g
13.95
>>> x == g
True
>>> h = round(x, 2)
>>> h
13.95
>>> x == h
True

Example 2: python format numeric output

for x in numbers:
    print "{:10.4f}".format(x)
prints

   23.2300
    0.1233
    1.0000
    4.2230
 9887.2000

Example 3: format number differences in python

# make the total string size AT LEAST 9 (including digits and points), fill with zeros to the left
'{:0>9}'.format(3.499)
# >>> '00003.499'

Example 4: show all digits in python

>>> a
3.101541146879488e+80
>>> int(a)
310154114687948792274813492416458874069290879741385354066259033875756607541870592L
>>> long(a)
310154114687948792274813492416458874069290879741385354066259033875756607541870592L
>>> print (int(a))
310154114687948792274813492416458874069290879741385354066259033875756607541870592
>>> print (long(a))
310154114687948792274813492416458874069290879741385354066259033875756607541870592