Yupee.. Thanks for the knowledge sharing.
Regards
Prahallad
On Sat, 16 Feb 2019, 12:18 dieter Prahallad Achar writes:
>
> > I get list object instead gen obj
>
> If you have a list "l" and want a generator, you can use
>( x for x in l)
> or simpler "iter(l)" - which gives you an interator
riations on the above that do not alter the list
> would be to use an index based on the length of the list and count backward
> as you return what is at that index.
>
> -Original Message-
> From: Python-list On
> Behalf Of dieter
> Sent: Saturday, February 16, 2019 1:47
x.
-Original Message-
From: Python-list On
Behalf Of dieter
Sent: Saturday, February 16, 2019 1:47 AM
To: python-list@python.org
Subject: Re: Problem : Generator
Prahallad Achar writes:
> I get list object instead gen obj
If you have a list "l" and want a generator, yo
Prahallad Achar writes:
> I get list object instead gen obj
If you have a list "l" and want a generator, you can use
( x for x in l)
or simpler "iter(l)" - which gives you an interator over "l".
An "iterator" is slightly more general than a generator
(every generator is also an iterator).
Prahallad Achar於 2019年2月15日星期五 UTC+8下午5時27分36秒寫道：
> I get list object instead gen obj
>
> On Fri, 15 Feb 2019, 13:57 Chris Angelico
> > On Fri, Feb 15, 2019 at 6:57 PM Prahallad Achar
> > wrote:
> > >
> > > How about this
> > > List1=[ 1,2,3,4]
> > > Rever_gen = ( x*x for x in list1, reversed
I get list object instead gen obj
On Fri, 15 Feb 2019, 13:57 Chris Angelico On Fri, Feb 15, 2019 at 6:57 PM Prahallad Achar
> wrote:
> >
> > How about this
> > List1=[ 1,2,3,4]
> > Rever_gen = ( x*x for x in list1, reversed = True)
> >
> > Rever_gen gets generator object and iterating it now ge
On Fri, Feb 15, 2019 at 6:57 PM Prahallad Achar wrote:
>
> How about this
> List1=[ 1,2,3,4]
> Rever_gen = ( x*x for x in list1, reversed = True)
>
> Rever_gen gets generator object and iterating it now gets reverse order..
>
> Am I correct here? Suggest me
>
How about reversed(list1) ?
ChrisA
-
How about this
List1=[ 1,2,3,4]
Rever_gen = ( x*x for x in list1, reversed = True)
Rever_gen gets generator object and iterating it now gets reverse order..
Am I correct here? Suggest me
On Fri, 15 Feb 2019, 12:33 dieter Prahallad Achar writes:
> > How to implement reverse generator
>
> A gene
Prahallad Achar writes:
> How to implement reverse generator
A generator generates a sequence of values.
The notion "reverse generator" suggests that you have a sequence
of values and want to produce it in reverse order.
This is not always possible.
Consider:
def natural():
i = 0
while True
Prahallad Achar writes:
> How to implement reverse generator
Welcome to the Python forum!
That sounds like an interesting problem. Can you describe it more
precisely? What should a “reverse generator” actually do (and not do)?
Ideally, give an example:
* Some code you would maybe expect to cr
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