[docs] https://docs.python.org/2/library/copy.html apparent error

[Zachary Ware]

Hi Andrew,

On Tue, Sep 27, 2016 at 9:13 PM, Andrew Jarcho <andrew.jarcho at gmail.com> wrote:
> Hi,
>
> I believe the following line in the above page of the Python 2.7.12
> documentation:
>
>>> Shallow copies of dictionaries can be made using dict.copy(), and of
>>> lists by assigning a slice of the entire list, for example, copied_list =
>>> original_list[:].
>
> should read:
>
>>> Deep copies of dictionaries...

Thanks for the report!  However, the line is accurate as written:
dict.copy() does indeed do a shallow copy:

   >>> l = []
   >>> d = dict(l=l)
   >>> d2 = d.copy()
   >>> l.append('Not a deep copy')
   >>> d2
   {'l': ['Not a deep copy']}

If you want a deep copy of a dict, you'll need to use the deepcopy() function.

Regards,
-- 
Zach