invert or not ?

[Stef Mientki]

hello,

from the manual I read that a bitwise inversion should be done by invert.
But from some experiments I see that not works equally well.
Is this coincidence ?

(The disadvantage of invert is that I've to import operators)

thanks,
Stef

[Peter Otten]

Re: invert or not ?

Stef Mientki wrote:

from the manual I read that a bitwise inversion should be done by invert.
But from some experiments I see that not works equally well.
Is this coincidence ?

[Are cryptical posts contagious? I hope not.]

Please explain what you did in your experiments and what did not work as
expected.

(The disadvantage of invert is that I've to import operators)

Do you travel with a suitcase or a lorry? The advantage of import is that
your programs won't grind to a halt loading stuff you don't need most of
the time. By the way

>>operator.inve rt(42) == ~42

True

Peter

[Grant Edwards]

Re: invert or not ?

On 2008-03-01, Stef Mientki <stef.mientki@g mail.comwrote:

from the manual I read that a bitwise inversion should be done
by invert. But from some experiments I see that not works
equally well.

What experiments are those?

>>print ~0xaa, not 0xaa

-171 False

>>print ~0x55, not 0x55

-86 False

>>>
>>print ~True, not True

-2 False

>>>

Is this coincidence ?

Is what coincidence?

(The disadvantage of invert is that I've to import operators)

No you don't.

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