[Bf-python] PYTHONPATH

[Stephen Swaney]

Willian Padovani Germano wrote:
> 
> Thanks for finding / sharing with us the info about how to set the python
> path, we'll look at how to improve the situation, maybe not for 2.29, but
> we'll surely work on this.

I was hacking around with this problem a bit, trying to figure out
why when I run python from the command line, I get the site-package
stuff, but not in blender.  There are some comments in the site.py
file about how the site module is automagically imported in python
versions > 1.5.  I guess we don't get it in blender because we
do all the python init stuff ourselves.

One quick hack-around is to insert something like the following 
at the beginning of a script:

import sys
try:
	import site
	sys.path += site.sitedirs
except:
	pass
# rest of init stuff here


A more permanent fix would be to enhance the init_syspath()
func in BPY_interface.c down in ../blender/source/blender/python/
There may be a better way to do this, but I have included
a first attempt at a patch just for fun.

-- 
Stephen Swaney			
sswaney at swbell.net
-------------- next part --------------
Index: BPY_interface.c
===================================================================
RCS file: /cvsroot/bf-blender/blender/source/blender/python/BPY_interface.c,v
retrieving revision 1.22
diff -u -r1.22 BPY_interface.c
--- BPY_interface.c	3 Sep 2003 04:13:08 -0000	1.22
+++ BPY_interface.c	12 Sep 2003 20:50:13 -0000
@@ -108,7 +108,7 @@
 
 /* TODO: Shouldn't "blender" be replaced by PACKAGE ?? (config.h) */
   Py_SetProgramName("blender");
-
+ 
   Py_Initialize ();
 
   init_ourImport ();
@@ -198,6 +198,28 @@
     p = Py_BuildValue("s", U.pythondir);
     syspath_append(p);  /* append to module search path */
   }
+
+  /* sds */ 
+  /* bring in the site module so we can add site-package dirs to sys.path */
+  mod = PyImport_ImportModule("site"); /* new ref */
+  if( mod)
+    {
+      PyObject* item;
+      int size, index ;
+
+      /* get the value of 'sitedirs' from the module */
+      d = PyModule_GetDict(mod); /* borrowed ref */
+      p = PyDict_GetItemString( d, "sitedirs");  /* borrowed ref */
+
+      /* append each item in sitedirs list to path */
+      size = PyList_Size( p ); 
+      for( index = 0; index < size; index++)
+	{
+	  item  = PyList_GetItem( p, index );  /* borrowed ref */
+	  syspath_append( item );
+  	}
+      Py_DECREF(mod);
+    }
 
   /* set sys.executable to the Blender exe */
   mod = PyImport_ImportModule("sys"); /* new ref */