[Zope] Re: trying to open a file in database but couldn't

[Tres Seaver]

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Andreas Jung wrote:
> 
> 
> --On 25. Februar 2006 21:55:24 -0800 Allen Huang
> <swapp0 at yahoo.com> wrote:
> 
> 
>>     imageDataFile=StringIO(str(imageData.data))
>>       tfw = open(imageDataFile, "r")
>>
> 
> Please consult the StringIO documentation. There is no need to open()
> a StringIO instance...also your code makes little sense to me because
> str() already returns a string which is usually what you need and want.
> Why do you have the need to put the image data into a StringIO instance.
> And another point: you should always use cStringIO instead of StringIO
> (for performance reasons)...consult the Python Library reference for
> details.
> -aj

In cases where it matters, cStringIO is not Unicode-safe:

  http://www.python.org/doc/current/lib/module-cStringIO.html


Tres.
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Tres Seaver          +1 202-558-7113          tseaver at palladion.com
Palladion Software   "Excellence by Design"    http://palladion.com
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