Calling a C program from a Python Script

[It's me]

I would expect C to run circles around the same operation under Python.   As
a general rule of thumb, you should use C for time cirtical operations
(computer time, that is), and use Python for human time critical situations
(you can get a program developed much faster).

I just discovered a magical package call SWIG (http://www.swig.org) that
makes writing C wrappers for Python always a child's play.  It's incredible!
Where were these guys years ago when I had to pay somebody moocho money to
develop a script language wrapper for my application!!!

--
It's me


"Brad Tilley" <bradtilley at gmail.com> wrote in message
news:cpa5l5$aua$1 at solaris.cc.vt.edu...
> Grant Edwards wrote:
> > Huh?  What do you mean "write a file open"?  You want to read a
> > C source file and execute the C source?  If you have access to
> > a C interpreter, I guess you could invoke the interpreter from
> > python using popen, and feed the C source to it.  Alternatively
> > you could invoke a compiler and linker from C to generate an
> > executable and then execute the resulting file.
> >
> >
> >>for root, files, dirs in os.walk(path)
> >>     for f in files:
> >>         try:
> >>             EXECUTE_C_PROGRAM
> >
> >
> > You're going to have to explain clearly what you mean by
> > "EXECUTE_C_PROGRAM".  If you want to, you can certainly run a
> > binary executable that was generated from C source, (e.g. an
> > ELF file under Linux or whatever a .exe file is under Windows).
>
> Appears I was finger-tied. I meant "a C program that opens and reads
> files" while Python does everything else. How does one integrate C into
> a Python script like that?
>
> So, instead of this:
>
> for root, files, dirs in os.walk(path)
>       for f in files:
>           try:
>               x = file(f, 'rb')
>               data = x.read()
>               x.close()
> this:
>
> for root, files, dirs in os.walk(path)
>       for f in files:
>           try:
>               EXECUTE_C_PROGRAM
>
>  From the Simpsons:
> Frink: "Here we have an ordinary square."
> Wiggum: "Whoa! Slow down egghead!"