numbers to string

[David Isaac]

>>y
[116, 114, 121, 32, 116, 104, 105, 115]

>>z=''.join(chr (yi) for yi in y)
>>z

'try this'

What is an efficient way to do this if y is much longer?
(A numpy solution is fine.)

Thanks,
Alan Isaac

[Robert Kern]

Re: numbers to string

David Isaac wrote:

>>>y

[116, 114, 121, 32, 116, 104, 105, 115]

>>>z=''.join(ch r(yi) for yi in y)
>>>z

'try this'
>
What is an efficient way to do this if y is much longer?
(A numpy solution is fine.)

With numpy, something like the following:

>>from numpy import *
>>y = [116, 114, 121, 32, 116, 104, 105, 115]
>>a = array(y, dtype=uint8)
>>z = a.tostring()
>>z

'try this'

--
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco

[Paul Rubin]

Re: numbers to string

"David Isaac" <aisaac0@verizo n.netwrites:

>y

[116, 114, 121, 32, 116, 104, 105, 115]

>z=''.join(chr( yi) for yi in y)
>z

'try this'
>
What is an efficient way to do this if y is much longer?

import array
z = array.array('B' ,y).tostring()

[Travis E. Oliphant]

Re: numbers to string

David Isaac wrote:

>>>y

[116, 114, 121, 32, 116, 104, 105, 115]

>>>z=''.join(ch r(yi) for yi in y)
>>>z

'try this'
>
What is an efficient way to do this if y is much longer?
(A numpy solution is fine.)

Here's another numpy solution just for fun:

import numpy
z = numpy.array(y,d type='u1').view ('S%d' % len(y))[0]


-Travis

[David Isaac]

Re: numbers to string

Robert Kern wrote:

>>from numpy import *
>>y = [116, 114, 121, 32, 116, 104, 105, 115]
>>a = array(y, dtype=uint8)
>>z = a.tostring()
>>z

'try this'



Very nice! Thanks also to Paul and Travis!
Alan Isaac