Question

Give follow python function define:

def Foo(a=0.1, b=1.6):
    pass

when I call ‘help(Foo)’, I will get:

Help on function Foo in module __main__:
Foo(a=0.10000000000000001, b=1.6000000000000001)

But I wish get:

Help on function Foo in module __main__:
Foo(a=0.1, b=1.6)

dear all of you, is there a way to print this pretty?

Answer 1

In Python 2.7, this happens by default.

Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "copyright", "credits" or "license()" for more information.
>>> def Foo(a=0.1, b=1.6):
    pass

>>> help(Foo)
Help on function Foo in module __main__:

Foo(a=0.1, b=1.6)

In earlier versions of Python, there is no easy way to change this behavior.