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pythonpython-2.7rounding

How to prevent rounding in python

suppose if a variable has a float value, and if i re-assign the same variable with an another float value it will round the fractional part of the value with respect to the no of fractional part in first value, how can i prevent that eg:

wav=10.456878798
print wav
wav=10.555546877796546
print wav

10.456878798
10.5555468778
Solution

  • You can do the following and set the precision :

    $ cat test.py
a = 10.456878798
print "{0:.2f}".format(a)
a = 10.555546877796546
print "{0:.15f}".format(a)

    The above will print you :

    $ python test.py
10.46
10.555546877796546

    Hope this helps.