Print either an integer or a float with n decimals

Question

In Python, how can one print a number that might be an integer or real type, when the latter case would require me to limit my printout to a certain amount of digits?

Long story short, say we have the following example:

print("{0:.3f}".format(num)) # I cannot do print("{}".format(num))
                             # because I don't want all the decimals

Is there a "Pythy" way to ensure e.g. in case num == 1 that I print 1 instead of 1.000 (I mean other than cluttering my code with if statements)

Answer 1

If you need to maintain a fixed-width for float values, you could use the printf-style formatting, like this:

>>> num = 1
>>> print('%0.*f' % (isinstance(num, float) * 3, num))
1
>>> num = 1.2345
>>> print('%0.*f' % (isinstance(num, float) * 3, num))
1.234
>>> num = 1.2
>>> print('%0.*f' % (isinstance(num, float) * 3, num))
1.200