Accessing dll

Tim Williams tjandacw at cox.net
Thu Sep 6 16:27:42 EDT 2012


On Thursday, September 6, 2012 4:21:56 PM UTC-4, Tim Williams wrote:
> On Thursday, September 6, 2012 11:07:07 AM UTC-4, Helpful person wrote:
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> > I am a complete novice to Python.  I wish to access a dll that has
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> > been written to be compatible with C and VB6.  I have been told that
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> > after running Python I should enter  "from ctypes import *" which
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> > allows Python to recognize the dll structure.  I have placed the dll
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> > into my active directory (if that's the correct word, one on my path)
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> > for simplification.
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> > I tried:   "import name.dll" but this just gave me an error telling me
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> > that there was no such module.
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> > Can someone please help?
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> > Richard
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> 
> I'm new to using the ctypes module also, but what I did to find the library was I appended the location of the dll to my PATH like so: (this is Windows)
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> pth = os.environ['path'].split(';')
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> pth.append(os.path.join(os.environ['userprofile'],'My Documents','DLLs'))
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> os.environ['path'] = ';'.join(pth)

I should have also mentioned to look at LoadLibrary in the ctypes module. e.g. 

mylib=cdll.LoadLibrary('mylib.dll')



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