Better way to negate a boolean list?

[=?ISO-8859-1?Q?David_Tr=E9mouilles?=]

Hi,

Is there any better (shorter) way to negate a boolean list than:

>>negated_boole an_list = [not elem for elem in boolean_list]

?

I tried:

>>map(not, boolean_list)

but it seems that "not" is not a function.

Thanks in advance,

David

[Paddy]

Re: Better way to negate a boolean list?

On Feb 10, 7:46 am, David Trémouilles <david.t...@gma il.comwrote:

Hi,
>
Is there any better (shorter) way to negate a boolean list than:

>>negated_boole an_list = [not elem for elem in boolean_list]

?
>
I tried:

>>map(not, boolean_list)

but it seems that "not" is not a function.
>
Thanks in advance,
>
David

Try [not x for x in boolean_list]

- Paddy.

[Steve Holden]

Re: Better way to negate a boolean list?

Paddy wrote:

On Feb 10, 7:46 am, David Trémouilles <david.t...@gma il.comwrote:

>Hi,
>>
> Is there any better (shorter) way to negate a boolean list than:

> >>negated_boole an_list = [not elem for elem in boolean_list]

>?
>>
>I tried:

> >>map(not, boolean_list)

>but it seems that "not" is not a function.
>>
>Thanks in advance,
>>
>David

>
Try [not x for x in boolean_list]
>

This six-character shortening by renaming the comprehension's bound
variable was a joke, right?

regards
Steve
--
Steve Holden +1 571 484 6266 +1 800 494 3119
Holden Web LLC http://www.holdenweb.com/

[Paddy]

Re: Better way to negate a boolean list?

On Feb 10, 1:41 pm, Steve Holden <st...@holdenwe b.comwrote:

Paddy wrote:

On Feb 10, 7:46 am, David Trémouilles <david.t...@gma il.comwrote:

Hi,

>

Is there any better (shorter) way to negate a boolean list than:
>>negated_boole an_list = [not elem for elem in boolean_list]
?

>

I tried:
>>map(not, boolean_list)
but it seems that "not" is not a function.

>

Thanks in advance,

>

David

>

Try [not x for x in boolean_list]

>
This six-character shortening by renaming the comprehension's bound
variable was a joke, right?

No,
Of course not!
It's much worse - I completely missed the line beginning negated_....
on
first and second reading.
I am indeed getting older, although I had thought I was way off my
dotage.

- Paddy.