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<TITLE>Some questions about the TransformPoints typemap</TITLE>
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<P><FONT SIZE=2>In 1.6.1, TransformPoints got a python typemap such that a list of tuples can be transformed.<BR>
I want to make it a little bit more general, such that the inner tuples can be lists as well.<BR>
While looking at the typemap, I have the following questions:<BR>
<BR>
- Why is there an explicit check on Py_None? Py_None will fail the next test anyway and the<BR>
error message is not entirely true since a tuple is a sequence as well (and works).<BR>
<BR>
- Memory is allocated with CPLMalloc; in some other typemaps it is plain malloc. In the latter<BR>
case, there is no check on allocation failures. Should these be replaced by CPLMalloc?<BR>
<BR>
- If CPLMalloc fails, it calls a memory allocation failure hook (according to the docs). The<BR>
default is to terminate the application; shouldn't this hook raise a python memory exception?<BR>
<BR>
- The transformpoints typemap returns a tuple of 2 lists. In general, python functions return<BR>
tuples. Is there a reason to return lists in this case?<BR>
<BR>
Regards,<BR>
<BR>
Rene Hogendoorn</FONT>
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