[Tutor] Running and passing variables to/from Fortran
I have a FORTRAN program which reads in unformatted sparse matrix data. Rather than rewriting the code in Python, I was hoping there is a way to call the Fortran program, passing filename variables TO Fortran, and returning the data (which is an array) back to my .py code for use there. Is there a simple example of this that someone knows of? ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Running and passing variables to/from Fortran
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Simple is the wrong idea. But I'd guess that you can access your Fortan from C. If so, Pyrex provides a C-for-Python-coder tool. OTOH, just reading the stuff in Python might be simpler than doing all the interfacing. (I presume that you are just reading the data. If you have verified working numeric code in Fortran, it's probably worthwhile to interface with it instead of porting it). Andreas John Washakie wrote: I have a FORTRAN program which reads in unformatted sparse matrix data. Rather than rewriting the code in Python, I was hoping there is a way to call the Fortran program, passing filename variables TO Fortran, and returning the data (which is an array) back to my .py code for use there. Is there a simple example of this that someone knows of? ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGPaUvHJdudm4KnO0RAtj2AJ9qqOxK0IxompMORJLEz7x62M8GSACdFSj/ kMxIV3hwO8eMPYG1FhYVLOQ= =zZXq -END PGP SIGNATURE- ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] Working with error messages
I have a number-to-Roman numeral program that churns out ValueError messages with a few improper input cases: 1. not an integer 2. larger than 3999 3. smaller than 0 When I run the program via IDLE, and I give one of these improper inputs, the interpreter closes down the program and then displays the appropriate ValueError message. I would like the appropriate ValueError message to be displayed before the program shuts down, or at least a generic ValueError message. Is looking at my specific pieces of code necessary to help with this? I want this because if the program's being run as an application, the application window closes down as soon as the program closes, and the user doesn't get to see the message. [When I doubleclick on the .py file in Windows Explorer, it runs as a .exe, for example.] -- Computers were the first God-Satan collaboration project. Blind faith in bad leadership is not patriotism. One of the most horrible features of war is that all the war-propaganda, all the screaming and lies and hatred, comes invariably from people who are not fighting.-George Orwell, _Homage to Catalonia ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Working with error messages
2007/5/6, Alan Gilfoy [EMAIL PROTECTED]: I have a number-to-Roman numeral program that churns out ValueError messages with a few improper input cases: 1. not an integer 2. larger than 3999 3. smaller than 0 When I run the program via IDLE, and I give one of these improper inputs, the interpreter closes down the program and then displays the appropriate ValueError message. I would like the appropriate ValueError message to be displayed before the program shuts down, or at least a generic ValueError message. Is looking at my specific pieces of code necessary to help with this? I want this because if the program's being run as an application, the application window closes down as soon as the program closes, and the user doesn't get to see the message. [When I doubleclick on the .py file in Windows Explorer, it runs as a .exe, for example.] You could try something like: try: Your program except ValueError: raw_input(I got a ValueError. Press enter to end the program.) raise Of course, the more appropriate thing to do would be to catch the error at a lower level than the whole program - check where you get the ValueError, put that line in a try, and take an appropriate action in the except. -- Andre Engels, [EMAIL PROTECTED] ICQ: 6260644 -- Skype: a_engels ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
[Tutor] command lines
Is there a way to send a command to the Linux Terminal from inside a Python program? Jason___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] command lines
On 5/6/07, Jason Coggins [EMAIL PROTECTED] wrote: Is there a way to send a command to the Linux Terminal from inside a Python program? os.system(), os.popen(), etc. -- - Rikard - http://bos.hack.org/cv/ ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] when to introduce classes
Rohan Deshpande wrote: Hi All, I am wondering when is a good time to introduce classes into a python program. Is there any rule of thumb as to when they are necessary, and when it is okay to just stick with regular functions and variables? http://personalpages.tds.net/~kent37/stories/00014.html Kent ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Running and passing variables to/from
hi john, what about f2py - Fortran to Python interface generator Port description for lang/f2py Writing Python C/API wrappers for Fortran routines can be a very tedious task, especially if a Fortran routine takes more than 20 arguments but only few of them are relevant for the problems that they solve. So, I have developed a tool that generates the C/API modules containing wrapper functions of Fortran routines. I call this tool as F2PY - Fortran to Python Interface Generator. It is completely written in Python language and can be called from the command line as f2py. WWW: http://cens.ioc.ee/projects/f2py2e/ e. - SCENA - Единственото БЕЗПЛАТНО списание за мобилни комуникации и технологии. http://www.bgscena.com/ ___ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
