How to turn a float number like 293.4662543 into 293.47 in python?

Question

How to shorten the float result I got? I only need 2 digits after the dot. Sorry I really don\'t know how to explain this better in English...

Thanks

Answer 1

If you need numbers like 2.3k or 12M, this function does the job:

def get_shortened_integer(number_to_shorten):
    """ Takes integer and returns a formatted string """
    trailing_zeros = floor(log10(abs(number_to_shorten)))
    if trailing_zeros < 3:
        # Ignore everything below 1000
        return trailing_zeros
    elif 3 <= trailing_zeros <= 5:
        # Truncate thousands, e.g. 1.3k
        return str(round(number_to_shorten/(10**3), 1)) + 'k'
    elif 6 <= trailing_zeros <= 8:
        # Truncate millions like 3.2M
        return str(round(number_to_shorten/(10**6), 1)) + 'M'
    else:
        raise ValueError('Values larger or equal to a billion not supported')

Results:

>>> get_shortened_integer(2300)
2.3k # <-- str

>>> get_shortened_integer(1300000)
1.3M # <-- str