[Numpy-discussion] Still having issues

Blubaugh, David A. dblubaugh@belcan....
Tue Sep 9 17:53:02 CDT 2008


Mark,  


I have taken the advice that you had given to me the other day.
However,  I am still having issues with actually executing the f2py.py
script.  


>   If numpy is installed, then f2py will be too.  >   On the windows
environment,
>   there is a file called f2py.py that you can >>> >   call from the
command line.  It
>   should be in the 'scripts' directory of your >  >   Python
installation.
>
>   Try something like this:
>
>   python c:\python25\scripts\f2py.py
>   (of course change to reflect your own python >  >   installation
directory)


It appears that once I run the f2py.py script from the IDLE environment,
I will then obtain the following error:


You will have to read at the end of the listed output. It looks as
though there was a premature system exit once f2py.py was executed.     



>>> 
Usage:

1) To construct extension module sources:

      f2py [<options>] <fortran files> [[[only:]||[skip:]] \
                                        <fortran functions> ] \
                                       [: <fortran files> ...]

2) To compile fortran files and build extension modules:

      f2py -c [<options>, <build_flib options>, <extra options>]
<fortran files>

3) To generate signature files:

      f2py -h <filename.pyf> ...< same options as in (1) >

Description: This program generates a Python C/API file
(<modulename>module.c)
             that contains wrappers for given fortran functions so that
they
             can be called from Python. With the -c option the
corresponding
             extension modules are built.

Options:

  --g3-numpy       Use numpy.f2py.lib tool, the 3rd generation of F2PY,
                   with NumPy support.
  --2d-numpy       Use numpy.f2py tool with NumPy support. [DEFAULT]
  --2d-numeric     Use f2py2e tool with Numeric support.
  --2d-numarray    Use f2py2e tool with Numarray support.

  -h <filename>    Write signatures of the fortran routines to file
<filename>
                   and exit. You can then edit <filename> and use it
instead
                   of <fortran files>. If <filename>==stdout then the
                   signatures are printed to stdout.
  <fortran functions>  Names of fortran routines for which Python C/API
                   functions will be generated. Default is all that are
found
                   in <fortran files>.
  <fortran files>  Paths to fortran/signature files that will be scanned
for
                   <fortran functions> in order to determine their
signatures.
  skip:            Ignore fortran functions that follow until `:'.
  only:            Use only fortran functions that follow until `:'.
  :                Get back to <fortran files> mode.

  -m <modulename>  Name of the module; f2py generates a Python/C API
                   file <modulename>module.c or extension module
<modulename>.
                   Default is 'untitled'.

  --[no-]lower     Do [not] lower the cases in <fortran files>. By
default,
                   --lower is assumed with -h key, and --no-lower
without -h key.

  --build-dir <dirname>  All f2py generated files are created in
<dirname>.
                   Default is tempfile.mktemp().

  --overwrite-signature  Overwrite existing signature file.

  --[no-]latex-doc Create (or not) <modulename>module.tex.
                   Default is --no-latex-doc.
  --short-latex    Create 'incomplete' LaTeX document (without commands
                   \documentclass, \tableofcontents, and
\begin{document},
                   \end{document}).

  --[no-]rest-doc Create (or not) <modulename>module.rst.
                   Default is --no-rest-doc.

  --debug-capi     Create C/API code that reports the state of the
wrappers
                   during runtime. Useful for debugging.

  --[no-]wrap-functions    Create Fortran subroutine wrappers to Fortran
77
                   functions. --wrap-functions is default because it
ensures
                   maximum portability/compiler independence.

  --include_paths <path1>:<path2>:...   Search include files from the
given
                   directories.

  --help-link [..] List system resources found by system_info.py. See
also
                   --link-<resource> switch below. [..] is optional list
                   of resources names. E.g. try 'f2py --help-link
lapack_opt'.

  --quiet          Run quietly.
  --verbose        Run with extra verbosity.
  -v               Print f2py version ID and exit.


numpy.distutils options (only effective with -c):

  --fcompiler=         Specify Fortran compiler type by vendor
  --compiler=          Specify C compiler type (as defined by distutils)

  --help-fcompiler     List available Fortran compilers and exit
  --f77exec=           Specify the path to F77 compiler
  --f90exec=           Specify the path to F90 compiler
  --f77flags=          Specify F77 compiler flags
  --f90flags=          Specify F90 compiler flags
  --opt=               Specify optimization flags
  --arch=              Specify architecture specific optimization flags
  --noopt              Compile without optimization
  --noarch             Compile without arch-dependent optimization
  --debug              Compile with debugging information

Extra options (only effective with -c):

  --link-<resource>    Link extension module with <resource> as defined
                       by numpy.distutils/system_info.py. E.g. to link
                       with optimized LAPACK libraries (vecLib on
MacOSX,
                       ATLAS elsewhere), use --link-lapack_opt.
                       See also --help-link switch.

  -L/path/to/lib/ -l<libname>
  -D<define> -U<name>
  -I/path/to/include/
  <filename>.o <filename>.so <filename>.a

  Using the following macros may be required with non-gcc Fortran
  compilers:
    -DPREPEND_FORTRAN -DNO_APPEND_FORTRAN -DUPPERCASE_FORTRAN
    -DUNDERSCORE_G77

  When using -DF2PY_REPORT_ATEXIT, a performance report of F2PY
  interface is printed out at exit (platforms: Linux).

  When using -DF2PY_REPORT_ON_ARRAY_COPY=<int>, a message is
  sent to stderr whenever F2PY interface makes a copy of an
  array. Integer <int> sets the threshold for array sizes when
  a message should be shown.

Version:     2_4423
numpy Version: 1.0.4
Requires:    Python 2.3 or higher.
License:     NumPy license (see LICENSE.txt in the NumPy source code)
Copyright 1999 - 2005 Pearu Peterson all rights reserved.
http://cens.ioc.ee/projects/f2py2e/

Traceback (most recent call last):
  File "C:\Python25\Scripts\f2py.py", line 26, in <module>
    main()
  File "C:\Python25\lib\site-packages\numpy\f2py\f2py2e.py", line 560,
in main
    run_main(sys.argv[1:])
  File "C:\Python25\lib\site-packages\numpy\f2py\f2py2e.py", line 339,
in run_main
    files,options=scaninputline(comline_list)
  File "C:\Python25\lib\site-packages\numpy\f2py\f2py2e.py", line 241,
in scaninputline
    sys.exit()
SystemExit




Mark,


I appears that the system has prematurely exited from execution.  Any
solutions???   


David



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