Convert hex to string

I have some output stored in a string that looks like.. >> x '\x01\xee\x1eo\xc3+\x8b\x83\xfad\xf6E\xaa\x0ea/I\x96\x83\xf5G\xa3\rQ\xfcH\xee\r' According to, http://docs.python.org/lib/typesseq-strings.html, this is "Unsigned Hexidecimal (lowercase)". How can I get this into normal Ascii so that

Swig and Python

I am trying to wrap some C code I have. Currently I have something like... defs.h --- typedef unsigned long MY_DIGIT; myapp.c - void MakeDigits(MY_DIGIT digits[]) { } char* GetString(char *inMessage, MY_DIGIT *digit) { char *results; ... ... return r

SWIG - python.exe crash

When I try to print an object in Python, python.exe crashes. Below are my files. defs.h -- typedef unsigned long MY_DIGIT; myapp.c ---

Call C functions from Python

Is there some other way, besides SWIG, which will allow me to call functions inside an Ansi C DLL? Example (C): defs.h --- typedef unsigned long MY_DIGIT; myapp.c - #include "defs.h" char *DoSomeStuff(char *input, MY_DIGIT *digits) { ... } ..thats an example of somethi

Re: Call C functions from Python

ok i got ctypes...now i try >> from ctypes import * >> myApp = CDLL("C:\\myapp.dll") ..now how can I call functions on in myapp.dll? From the tutorial I am not sure..i try, dir(cdll.myApp) and dir(myApp)..but don't see my functions listed. thanks Grant Edwards wrote

Re: Call C functions from Python

Grant Edwards wrote: > On 2005-10-04, Java and Swing <[EMAIL PROTECTED]> wrote: > > ok i got ctypes...now i try > > > >>> from ctypes import * > >>> myApp = CDLL("C:\\myapp.dll") > > I've never seen that sort of usage before. I don&#

question about output

i have printed out some numbers and they look like 10944800e 10952560d ...if i want to later assign this type of number to variable how can i do it? for example i can't do... >> x = 10944800e ..since it says "invalid token" on the "e". thanks. -- http://mail.python.org/mailman/listinfo/pyth

Re: Call C functions from Python

i tried... >> from ctypes import * >> myapp = cdll.LoadLibrary("c:\\myapp.dll") >> dumpbin /exports myapp.pyd i get, SyntaxError: invalid syntax with it pointing at the first "p" in myapp.pyd. -- http://mail.python.org/mailman/listinfo/python-list

Re: question about output

doh! nevermind, my original output had e and d in it. -- http://mail.python.org/mailman/listinfo/python-list

Re: Call C functions from Python

i dont have a myapp.pyd ...i have myapp.c, or are u suggesting I dump the dll? or the swig generated python file? the swig generated python file only has .py and .pyc. -- http://mail.python.org/mailman/listinfo/python-list

Swig and pointers

I've tried sending a email to the swig mailing list 3 times...but it never seems to get it...not sure what is going on, still looking into it. Until then... I now have a C function such as... int doIt(char *a, MY_DIGIT **digit) { ... } so I am trying to figure out how to pass in that "digit"

Re: Swig and pointers

im sorry, why would it be md_ptr? what is md_ptr? i tried.. %include cpointer.i %pointer_functions(MY_DIGIT, digit_ptr) ptr = new_digit_ptr() doIt("a message", ptr) ...doesnt work..still needs a DIGIT ** -- http://mail.python.org/mailman/listinfo/python-list

Re: Swig and pointers

(reposting, i was just told how I should properly reply via groups.google.com) im sorry, why would it be md_ptr? what is md_ptr? i tried.. %include cpointer.i %pointer_functions(MY_DIGIT, digit_ptr) ptr = new_digit_ptr() doIt("a message", ptr) ...doesnt work..still needs a DIGIT ** Miki Tebek

SWIG + print value of pointer

I am using SWIG to wrap a C application for use in Python. C code == // returns a pointer to an array of long values in the string, "input" // MY_DIGIT is a typedef such as, typedef unsigned long MY_DIGIT; MY_DIGIT *Split(char *input) { ... } ..I build a DLL named, _MyApp.dll SWIG interface

Help creating extension for C function

I need to write an extension for a C function so that I can call it from python. C code (myapp.c) == typedef unsigned long MY_LONG; char *DoStuff(char *input, MY_LONG *x) { ... } so you pass in a string and an array of MY_LONGS...such as MY_LONGS vals[10] = {}; char *input = "this is my

Re: Help creating extension for C function

So is "module.c" a new C file or do I add it to my existing, myapp.c? Fredrik Lundh wrote: > >seq = PySequence_Fast(data, "expected a sequence"); > >if (!seq) > >return NULL; > > here's some more information on the PySequence_Fast API: > > http://www.effbot.org/zone/python-ca

Re: Help creating extension for C function

would they go? Thanks! Java and Swing wrote: > So is "module.c" a new C file or do I add it to my existing, myapp.c? > > > Fredrik Lundh wrote: > > >seq = PySequence_Fast(data, "expected a sequence"); > > >if (!seq) > > >

Wrapper function

I am having trouble with a wrapper function... My C code looks like --- #include #include #include "Python.h" int doStuff(const char *input, const char *d) {...} PyObject *wrap_doStuff(PyObject *, PyObject *args) { int result; char *input = 0; char *

Re: Wrapper function

Diez, yes you were right! But I have other problems now. I now have... #include #include #include "Python.h" int doStuff(const char *input, const char *d) {...} static PyObject *wrap_doStuff(PyObject *self, PyObject *args) { int result; char *input = 0; char *d = 0;

Re: Wrapper function

gt;>) c:\> python setup.py build_ext -i ..is that it? If so, then it's ok that I get those 2 errors when trying to build in visual c++? thanks Robert Kern wrote: > Java and Swing wrote: > > > When I compile, I get two warnings..which are ok. Then when I build my > &

Re: Help creating extension for C function

ecuting link.exe. Any ideas what's happening here? DLLTester.dll - 2 error(s), 0 warning(s) Fredrik Lundh wrote: > Java and Swing wrote: > > > So is "module.c" a new C file or do I add it to my existing, myapp.c? > > it's a complete module. if you want it to do

Re: Help creating extension for C function

compiler gives two warnings, one of which is... "warning C4013: 'PyBuildValue' undefined; assuming extern returning int" thanks. >> from DLLTester import * >> x = doStuff("1,2,3,4,5", ",") >> Java and Swing wrote: > Fredrik, >

Re: Help creating extension for C function

Carsten..thanks so much...that was it! DUH! Carsten Haese wrote: > On Tue, 2005-10-11 at 15:14, Java and Swing wrote: > > Anyhow, I need PyBuildValue to work. > > Try Py_BuildValue. > > HTH, > > Carsten Haese. -- http://mail.python.org/mailman/listinfo/python-list

Re: Help creating extension for C function

quick question...how about returning an array of longs? ..or in my case I have a pointer to an array of longs. Thanks Carsten Haese wrote: > On Tue, 2005-10-11 at 15:14, Java and Swing wrote: > > Anyhow, I need PyBuildValue to work. > > Try Py_BuildValue. > > HT

C Extension - return an array of longs or pointer?

Hi, I have been posting about writing a C extension for Python...so far, so good. At least for the "simple" functions that I need to wrap. Ok, my c function looks like... MY_NUM *doNumberStuff(const char *in, const char *x) { ... } MY_NUM is defined as, typedef unsigned long MY_NUM; (not su

C Wrapper Function, crashing Python?

static PyObject *wrap_doStuff(PyObject *self, PyObject *args) { // this will store the result in a Python object PyObject *finalResult; // get arguments from Python char *result = 0; char *in= 0; char *aString = 0; char *bString = 0;

Re: C Extension - return an array of longs or pointer?

Interesting...thanks. Any good tutorials out there, other than the python doc for ext? thanks. Brandon K wrote: > All the veteran programmers out there can correct me, but the way I did > it in my extension was this: > > static PyObject *wrap_doNumberStuff(PyObject* self, PyObject* args) > { >

Re: C Wrapper Function, crashing Python?

update: if I use C's free(result), free(a) free(b) instead of PyMem_Free...I only get one successfuly use/call of doStuff. i.e. // this works doStuff(...) // python crashes here doStuff(...) Java and Swing wrote: > static PyObject *wrap_doStuff(PyObject *self, PyObject *args) { >

Re: C Wrapper Function, crashing Python?

one more update... if I remove PyMem_Free and free(...) ...so no memory clean up...I can still only call doStuff 4 times, the 5th attemp crashes Python. Java and Swing wrote: > update: > if I use C's free(result), free(a) free(b) instead of PyMem_Free...I > only get one successfu

Re: C Wrapper Function, crashing Python?

ff is a plain C function...nothing related to Python. Antoon Pardon wrote: > Op 2005-10-12, Java and Swing schreef <[EMAIL PROTECTED]>: > > static PyObject *wrap_doStuff(PyObject *self, PyObject *args) { > > // this will store the result in a Python object > >

Re: C Wrapper Function, crashing Python?

ff is a plain C function...nothing related to Python. Antoon Pardon wrote: > Op 2005-10-12, Java and Swing schreef <[EMAIL PROTECTED]>: > > static PyObject *wrap_doStuff(PyObject *self, PyObject *args) { > > // this will store the result in a Python object > >

Re: C Wrapper Function, crashing Python?

Sorry about the double post... anyhow, after putting in debug statements I found that it was crashing when it called, free(result)so I removed the free(result). now it crashes when it gets to, b = GetVal(bString, count(bString, ",")); ..any ideas? Java and Swing wrote: > A

Re: C Wrapper Function, crashing Python?

ideas why this is crashing when calling from Python via C wrapper? Java and Swing wrote: > Sorry about the double post... > > anyhow, after putting in debug statements I found that it was crashing > when it called, free(result)so I removed the free(result). > > now it crashes

Re: C Wrapper Function, crashing Python?

thanks for the tip, however even when I do not free aString or bString, i'm still crashing at the malloc in the c function, not the wrapper. Bernhard Herzog wrote: > "Java and Swing" <[EMAIL PROTECTED]> writes: > > > static PyObject *wrap_doStu

Re: C Wrapper Function, crashing Python?

have trouble. Thanks in advance. Bernhard Herzog wrote: > "Java and Swing" <[EMAIL PROTECTED]> writes: > > > thanks for the tip, however even when I do not free aString or bString, > > i'm still crashing at the malloc in the c function, not the wrapper. > &

Re: C Wrapper Function, crashing Python?

Bernhard Herzog wrote: > "Java and Swing" <[EMAIL PROTECTED]> writes: > > > char *foo(const char *in) { > > char *tmp; > > tmp = (char *) malloc((strlen(in) * sizeof(char)) + 1); > > strcpy(tmp, in); > > ... > > ... >

Pass a tuple (or list) to a C wrapper function

I have a C function which takes an array of long values.. I understand that I can pass a tuple to a C wrapper function and in the C wrapper function have.. int ok = PyArg_ParseTuple(args, "s(ll)", &a, &b, &c); ..that's great if my tuple only contained two longs..but what if it contained 50 would

Re: Pass a tuple (or list) to a C wrapper function

Fredrik...I forgot about that...wish Google Groups had a way to quickly find the topics a user posts. anyhow, for receiving an object from python..is it ok = PyArg_ParseTuple(args, "sO", &x, &y); ...is it "sO" or "s0" is it O (as in the letter) or 0 (as in the number)? I would think "O" the

Re: Pass a tuple (or list) to a C wrapper function

Fredrik, ...I tried using your code... static long *get_long_array(PyObject *data, int *data_size) { int i, size; long* out; PyObject* seq; seq = PySequence_Fast(data, "expected a sequence"); if (!seq) return NULL; size = PySequence_Size(seq); if (size < 0)

Re: Pass a tuple (or list) to a C wrapper function

I got it. I had get_long_array placed after the method that was calling it.. i.e. void doStuf(...) { x = get_long_array(...); } static long *get_long_array(PyObject *data, int *data_size) { ... } ...I put get_long_array before it in my code..and its fine. Thanks Java and Swing wrote

When to free memory for C wrapper?

I have been posting lately about writing a C wrapper so Python can access my C functions. In my wrapper function I have something like... static PyObject *wrap_doStuff(PyObject *self, PyObject *args) { PyObject *data; char *result; long *d; PyArg_ParseTuple(args, "O:wrap_doStuff"

Re: When to free memory for C wrapper?

lt; } Is PyResult going to be de-referenced or handled automaticlly by python in some way? Or, do I need to somehow call Py_DECREF(pyResult) somewhere..if so, where/when? Thanks! Java and Swing wrote: > I have been posting lately about writing a C wrapper so Python can > access my

win32 process information, using win32 extension

i need to get information about the processes running on a windows pc (98, 2k, xp) i can get the pid's using, win32process.EnumProcesses()...and I can get a handle on a process using an id..such as handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION, 0, pids[0]) ..but how can i get