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\section{\fpy command line options}
\label{sec:opts}
\fpy has the following command line syntax (run \fpy without arguments
to get up to date options!!!):
\begin{verbatim}
f2py [<options>] <fortran files> [[[only:]||[skip:]] <fortran functions> ]\
[: <fortran files> ...]
\end{verbatim}
where
\begin{description}
\item[\texttt{<options>}] --- the following options are available:
\begin{description}
\item[\texttt{-f77}] --- \texttt{<fortran files>} are in Fortran~77
fixed format (default).
\item[\texttt{-f90}] --- \texttt{<fortran files>} are in
Fortran~90/95 free format (default for signature files).
\item[\texttt{-fix}] --- \texttt{<fortran files>} are in
Fortran~90/95 fixed format.
\item[\texttt{-h <filename>}] --- after scanning the
\texttt{<fortran files>} write the signatures of Fortran routines
to file \texttt{<filename>} and exit. If \texttt{<filename>}
exists, \fpy quits without overwriting the file. Use
\texttt{-{}-overwrite-signature} to overwrite.
\item[\texttt{-m <modulename>}] --- specify the name of the module
when scanning Fortran~77 codes for the first time. \fpy will
generate Python C/API module source \texttt{<modulename>module.c}.
\item[\texttt{-{}-lower/-{}-no-lower}] --- lower/do not lower the cases
when scanning the \texttt{<fortran files>}. Default when
\texttt{-h} flag is specified/unspecified (that is for Fortran~77
codes/signature files).
\item[\texttt{-{}-short-latex}] --- use this flag when you want to
include the generated LaTeX document to another LaTeX document.
\item[\texttt{-{}-debug-capi}] --- create a very verbose C/API
code. Useful for debbuging.
% \item[\texttt{-{}-h-force}] --- if \texttt{-h <filename>} is used then
% overwrite the file \texttt{<filename>} (if it exists) and continue
% with constructing the C/API module source.
\item[\texttt{-makefile <options>}] --- run \fpy without arguments
for more information.
\item[\texttt{-{}-use-libs}] --- see \texttt{-makefile}.
\item[\texttt{-{}-overwrite-makefile}] --- overwrite existing
\texttt{Makefile-<modulename>}.
\item[\texttt{-v}] --- print \fpy version number and exit.
\item[\texttt{-pyinc}] --- print Python include path and exit.
\end{description}
\item[\texttt{<fortran files>}] --- are the paths to Fortran files or
to signature files that will be scanned for \texttt{<fortran
functions>} in order to determine their signatures.
\item[\texttt{<fortran functons>}] --- are the names of Fortran
routines for which Python C/API wrapper functions will be generated.
Default is all that are found in \texttt{<fortran files>}.
\item[\texttt{only:}/\texttt{skip:}] --- are flags for filtering
in/out the names of fortran routines to be wrapped. Run \fpy without
arguments for more information about the usage of these flags.
\end{description}
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