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#include "Python.h"

#include "osdefs.h"

static char *prefix, *exec_prefix, *progpath, *module_search_path=NULL;

static void

calculate_path()

{

char *pypath = getenv("Python$Path");

if (pypath) {

int pathlen = strlen(pypath);

module_search_path = malloc(pathlen + 1);

if (module_search_path)

strncpy(module_search_path, pypath, pathlen + 1);

else {

fprintf(stderr,

"Not enough memory for dynamic PYTHONPATH.\n"

"Using default static PYTHONPATH.\n");

}

}

if (!module_search_path)

module_search_path = "<Python$Dir>.Lib";

prefix = "<Python$Dir>";

exec_prefix = prefix;

progpath = Py_GetProgramName();

}

/* External interface */

char *

Py_GetPath()

{

if (!module_search_path)

calculate_path();

return module_search_path;

}

char *

Py_GetPrefix()

{

if (!module_search_path)

calculate_path();

return prefix;

}

char *

Py_GetExecPrefix()

{

if (!module_search_path)

calculate_path();

return exec_prefix;

}

char *

Py_GetProgramFullPath()

{

if (!module_search_path)

calculate_path();

return progpath;

}