better reporting for file i/o failier, use system error message in more places: Permission Denied, No space left, File not found etc.

- blend load/save uses os message.
- image load gives os message. (remove check for slash at end of line, just let the os report an error)
- python api load image/font/text raise errors with message (was just retuning None for image and font)
- minor edits to py api errors.

1 files changed, 5 insertions, 5 deletions

diff --git a/source/blender/python/generic/bgl.c b/source/blender/python/generic/bgl.c
index 806b5a5b3ce..ae19db28011 100644
--- a/source/blender/python/generic/bgl.c
+++ b/source/blender/python/generic/bgl.c
@@ -322,20 +322,20 @@ static int Buffer_ass_item(PyObject *self, int i, PyObject *v)
 	}
 
 	if (buf->type==GL_BYTE) {
-		if (!PyArg_Parse(v, "b;Coordinates must be ints", &buf->buf.asbyte[i]))
+		if (!PyArg_Parse(v, "b:Coordinates must be ints", &buf->buf.asbyte[i]))
 		return -1;
 	} else if (buf->type==GL_SHORT) {
-		if (!PyArg_Parse(v, "h;Coordinates must be ints", &buf->buf.asshort[i]))
+		if (!PyArg_Parse(v, "h:Coordinates must be ints", &buf->buf.asshort[i]))
 			return -1;
 	  
 	} else if (buf->type==GL_INT) {
-		if (!PyArg_Parse(v, "i;Coordinates must be ints", &buf->buf.asint[i]))
+		if (!PyArg_Parse(v, "i:Coordinates must be ints", &buf->buf.asint[i]))
 			return -1;
 	} else if (buf->type==GL_FLOAT) {
-		if (!PyArg_Parse(v, "f;Coordinates must be floats", &buf->buf.asfloat[i]))
+		if (!PyArg_Parse(v, "f:Coordinates must be floats", &buf->buf.asfloat[i]))
 			return -1;
 	} else if (buf->type==GL_DOUBLE) {
-		if (!PyArg_Parse(v, "d;Coordinates must be floats", &buf->buf.asdouble[i]))
+		if (!PyArg_Parse(v, "d:Coordinates must be floats", &buf->buf.asdouble[i]))
 			return -1;
 	}
 	return 0;