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bpo-27385: Clarify docstring for groupby() (#3738)

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Raymond Hettinger 2017-09-25 01:21:06 -07:00 • committed by GitHub
parent 57c2561c8c
commit 49392c63a2
2 changed files with 4 additions and 3 deletions
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5
Modules/itertoolsmodule.c
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@ -176,8 +176,9 @@ static PyMethodDef groupby_methods[] = {
};
PyDoc_STRVAR(groupby_doc,
"groupby(iterable[, keyfunc]) -> create an iterator which returns\n\
(key, sub-iterator) grouped by each value of key(value).\n");
"groupby(iterable, key=None) -> make an iterator that returns consecutive\n\
keys and groups from the iterable. If the key function is not specified or\n\
is None, the element itself is used for grouping.\n");
static PyTypeObject groupby_type = {
PyVarObject_HEAD_INIT(NULL, 0)