what are generators?

[castironpi@gmail.com]

I'm looking for a cool trick using generators. Know any exercises I
can work?

[Miki]

Re: what are generators?

On Mar 24, 8:17 am, castiro...@gmai l.com wrote:

I'm looking for a cool trick using generators.  Know any exercises I
can work?

Simple one the comes to mind is flattening a list:

>>list(flatte n([1, [[2], 3], [[[4]]]]))

[1, 2, 3, 4]

>>>

HTH,
--
Miki <miki.tebeka@gm ail.com>

http://pythonwise.blogspot.com

[castironpi@gmail.com]

Re: what are generators?

On Mar 25, 7:36 pm, Miki <miki.teb...@gm ail.comwrote:

On Mar 24, 8:17 am, castiro...@gmai l.com wrote:
>

I'm looking for a cool trick using generators.  Know any exercises I
can work?

>
Simple one the comes to mind is flattening a list:
>

>list(flatten ([1, [[2], 3], [[[4]]]]))

[1, 2, 3, 4]

I don't think it's well-defined. (But this is impossible and useless
calling.) CMIIW?

This is generic:

>>def f():

... __gen= None
... def g():
... i= 0
... while 1:
... i+= 1
... yield __gen( i )
... def set( gen ):
... nonlocal __gen
... __gen= gen
... return g, set
...

>>a, set= f()
>>b= a()
>>set( lambda x: print( x ) )
>>next( b )

1

>>next( b )

2

>>next( b )

[castironpi@gmail.com]

Re: what are generators?

On Mar 27, 6:19 am, castiro...@gmai l.com wrote:

On Mar 25, 7:36 pm, Miki <miki.teb...@gm ail.comwrote:
>

On Mar 24, 8:17 am, castiro...@gmai l.com wrote:

>

I'm looking for a cool trick using generators.  Know any exercises I
can work?

>

Simple one the comes to mind is flattening a list:

>

>>list(flatte n([1, [[2], 3], [[[4]]]]))

[1, 2, 3, 4]

>
I don't think it's well-defined.  (But this is impossible and useless
calling.)  CMIIW?
>
This is generic:

Revise:

>>def f():

... __gen= None
... def set( gen ):
... nonlocal __gen
... __gen= gen
... yield set
... i= 0
... while 1:
... i+= 1
... yield __gen( i )
...

>>a= f()
>>set= next( a )
>>set( lambda x: print( x ) )
>>next( a )

1

>>next( a )

2

>>next( a )

3

>>>