Hoi,
thanks to Robert Kern who helped me out yesterday on the f2py-list, I was able
to make some progress in accessing FORTRAN from Python. But only some
progress ...
If I have the following code, named 'hello.f':
C File hello.f
subroutine foo (a)
integer a
print*, "Hello from Fortran!"
print*, "a=",a
end
and compile it with g77 -shared -fPIC hello.f -o hello.so
and then start python, I get the following:
>>> from numpy import *
>>> from ctypes import c_int, POINTER, byref
>>> hellolib = ctypeslib.load_library('hello', '.')
>>> hello = hellolib.foo_
>>> hello(42)
Hello from Fortran!
Segmentation fault
Can anybody tell me where my mistake is? (Currently python 2.4.1 (no intention
to update soon), the most recent ctypes, and numpy '1.0.dev3341' from svn.)
And a second question: Are there simple examples around which show how to pass
and retrieve lists, numpy arrays, and dicts to and from FORTRAN? Despite an
intensive web search I couldn't find anything.
TIA
Christian
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