Thank you for clarifying that. Now on to getting the iterator from the method.
Jen
Feb 8, 2022, 18:10 by pyt...@mrabarnett.plus.com:
> On 2022-02-09 01:12, Jen Kris via Python-list wrote:
>
>> I am using the Python C API to load the Gutenberg corpus from the nltk
>> library and iterate through the sentences. The Python code I am trying to
>> replicate is:
>>
>> from nltk.corpus import gutenberg
>> for i, fileid in enumerate(gutenberg.fileids()):
>> sentences = gutenberg.sents(fileid)
>> etc
>>
>> where gutenberg.fileids is, of course, iterable.
>>
>> I use the following C API code to import the module and get pointers:
>>
>> int64_t Call_PyModule()
>> {
>> PyObject *pModule, *pName, *pSubMod, *pFidMod, *pFidSeqIter,*pSentMod;
>>
>> pName = PyUnicode_FromString("nltk.corpus");
>> pModule = PyImport_Import(pName);
>>
>> if (pModule == 0x0){
>> PyErr_Print();
>> return 1; }
>>
>> pSubMod = PyObject_GetAttrString(pModule, "gutenberg");
>> pFidMod = PyObject_GetAttrString(pSubMod, "fileids");
>> pSentMod = PyObject_GetAttrString(pSubMod, "sents");
>>
>> pFidIter = PyObject_GetIter(pFidMod);
>> int ckseq_ok = PySeqIter_Check(pFidMod);
>> pFidSeqIter = PySeqIter_New(pFidMod);
>>
>> return 0;
>> }
>>
>> pSubMod, pFidMod and pSentMod all return valid pointers, but the iterator
>> lines return zero:
>>
>> pFidIter = PyObject_GetIter(pFidMod);
>> int ckseq_ok = PySeqIter_Check(pFidMod);
>> pFidSeqIter = PySeqIter_New(pFidMod);
>>
>> So the C API thinks gutenberg.fileids is not iterable, but it is. What am I
>> doing wrong?
>>
> Look at your Python code. You have "gutenberg.fileids()", so the 'fileids'
> attribute is not an iterable itself, but a method that you need to call to
> get the iterable.
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