1. Armin Rigo
  2. cpython-withatomic

Source

cpython-withatomic / Modules / getpath.c

/***********************************************************
Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
The Netherlands.

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/* Return the initial module search path. */

#include "Python.h"
#include "osdefs.h"


#ifndef PYTHONPATH
#define PYTHONPATH "/usr/local/lib/python"
#endif

#ifndef PREFIX
#define PREFIX "/usr/local"
#endif

#ifndef EXEC_PREFIX
#define EXEC_PREFIX PREFIX
#endif


/* This is called once from pythonrun to initialize sys.path.  The
   environment variable PYTHONPATH is fetched and the default path
   appended.  The default path may be passed to the preprocessor; if
   not, a hardcoded default is used, which only makes (some) sense on
   Unix. */

char *
Py_GetPath()
{
	char *path = getenv("PYTHONPATH");
	char *defpath = PYTHONPATH;
	static char *buf = NULL;
	char *p;
	int n;

	if (path == NULL)
		path = "";
	n = strlen(path) + strlen(defpath) + 2;
	if (buf != NULL) {
		free(buf);
		buf = NULL;
	}
	buf = malloc(n);
	if (buf == NULL)
		Py_FatalError("not enough memory to copy module search path");
	strcpy(buf, path);
	p = buf + strlen(buf);
	if (p != buf)
		*p++ = DELIM;
	strcpy(p, defpath);
	return buf;
}


/* Similar for Makefile variables $prefix and $exec_prefix */

char *
Py_GetPrefix()
{
	return PREFIX;
}

char *
Py_GetExecPrefix()
{
	return EXEC_PREFIX;
}