help on "from deen import *" vs. "import deen"

[Bev in TX]

 From the Python 3.5.2 docs:

6.15. Evaluation order
Python evaluates expressions from left to right. Notice that while 
evaluating an assignment, the right-hand side is evaluated before the 
left-hand side.

Thus, spam = eggs = cheese = obj is equivalent to:

spam = (eggs = (cheese = obj))

which is also equivalent to:

cheese = obj
eggs = cheese
spam = eggs

These all are now references to obj.

In both of your examples, everything also ends up as references to obj. 
The only difference is the order of evaluation.

Bev in TX

On 11/19/16 12:58 AM, Chris Angelico wrote:
> On Sat, Nov 19, 2016 at 3:34 PM, Steve D'Aprano
> <steve+python at pearwood.info> wrote:
>> What happens if you do this?
>>
>> spam = eggs = cheese = obj
>>
>> Is that different from:
>>
>> spam = obj
>> eggs = obj
>> cheese = obj
>>
>>
>> or from this?
>>
>> spam = obj
>> eggs = spam
>> cheese = eggs
>> ...
>> These aren't silly questions.
>
> Indeed, they are not silly. It surprised me (as a C programmer) that
> the assignments happen left-to-right, rather than right-to-left (in C,
> cheese would be set first, then eggs, then spam). These are questions
> filled with subtleties.
>
> ChrisA
>