Finding keyword arguments in the documentation

[Peter Otten]

Jerry Hill wrote:

> On Tue, Sep 26, 2017 at 12:32 PM, Peter Otten <__peter__ at web.de> wrote:
>> Newer Python versions will show
>>
>> Help on built-in function sin in module math:
>>
>> sin(x, /)
>>     Return the sine of x (measured in radians).
>>
>>
>> where the arguments before the slash are positional-only:
> 
> What version of python do you need to see that output from help?  I'm
> not seeing it in 3.6.1 on windows:

It looks like in that particular case the transition will have to wait till 
Python 3.7, but some functions should already have been changed in 3.6. Try 

help(hex)