How can I use a DLL file from Python?

Question

What is the easiest way to use a DLL file from within Python?

Specifically, how can this be done without writing any additional wr

Answer 1

This page has a very simple example of calling functions from a DLL file.

Paraphrasing the details here for completeness:

It's very easy to call a DLL function in Python. I have a self-made DLL file with two functions: add and sub which take two arguments.

add(a, b) returns addition of two numbers
sub(a, b) returns substraction of two numbers

The name of the DLL file will be "demo.dll"

Program:

from ctypes import*
# give location of dll
mydll = cdll.LoadLibrary("C:\\demo.dll")
result1= mydll.add(10,1)
result2= mydll.sub(10,1)
print "Addition value:"+result1
print "Substraction:"+result2

Output:

Addition value:11
Substraction:9