为可变数量的输入概括打印+格式

Question

If I have a 3-tuple of floats, and I want to print them formatted, I can do:

print('{:.2f} {:.2f} {:.2f}'.format(*my_tuple))

And if I have an n-tuple of floats, I can use a map and achieve the same formatting with:

print(*map(lambda x: '{:.2f}'.format(x), my_tuple))

I was wondering, though, if there is a way of changing the print function itself so that it already does the formatting I want for floats without any extra intervention. I couldn't find anything about that in the docs.

I'd like to have a simple print(*my_tuple) that would work also in cases where not all terms in the tuple are floats.

I am asking this question because it seems like I should be able to tweak print , so I feel I'm missing something simple here.

Answer 1

Why not simply define your own? Like so:

def my_print(data):
    print(', '.join('{:.2f}'.format(x) if type(x)==float else str(x) for x in data))

my_print((1.23, 51212., 5.151252, 1.25, 125.1545, .5314451, 5.1251, 5,.125 , 'sdgsdgdsg'))
# prints:
# 1.23, 51212.00, 5.15, 1.25, 125.15, 0.53, 5.13, 5, 0.12, sdgsdgdsg

After all you would not want to change or redefine the way print() works and you don't have to..