[f2py] f2py and F90 compiler options

Jeremy Roberts <[email protected]>
Newsgroups gmane.comp.python.f2py.user
Message-ID <[email protected]>
Hi,

I'm new to f2pi, and I'm seemingly running into issues using the Fortran-90
compiler options.  The issue is that I have a large Fortran unformatted file
with a record marker length of 4, and default on my system is 8.  I can fix
this by using "-frecord-marker = 4".  A Fortran executable works fine to
read this.

However, using f2pi and calling the same subroutine from Python yields an
error indicating that the "-frecord-marker" assignment hasn't been properly
used.

Fortran 90 :

*terminal% **gfortran -frecord-marker=4 testfort.f90 testmain.f90 -o testx
terminal% testx
 ** read **

*
where my files are:
*
*
*module testfort ! testfort.f90*
*    implicit none*
*    contains*
*    subroutine fudge(a)*
*        integer, intent(in) :: a*
*        integer    :: ucov=77, io*
*        open (unit = ucov, file = "44groupcov", action = "read", status =
"old", & *
*              position = "rewind", iostat = io, form="unformatted")  *
*        read(ucov)*
*        print *, " ** read ** "*
*    end subroutine fudge*
*end module testfort

program testmain ! testmain.f90
    use testfort
    implicit none
    call fudge(1)
end program testmain

*
Note, without the frecord assignment, I get:
*terminal% gfortran testfort.f90 testmain.f90 -o testx
terminal% testx
At line 9 of file testfort.f90
Fortran runtime error: Invalid argument

*
which seems to mean it's expecting a different file marker length in the
unformatted file "44groupcov".

Now, using f2py:

*terminal% f2py -m testfort -c testfort.f90 --f90flags="-frecord-marker=4"
--fcompiler=gfortran*
*terminal% python test.py
At line 9 of file testfort.f90
Fortran runtime error: Invalid argument*

Where test.py is:

*#! /usr/bin/env python
import testfort
testfort.testfort.fudge(1)*


Any insight as to what I'm doing wrong would be greatly appreciated.

I'm using f2py version 2_5972 and Python 2.5.4.

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