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9 changes: 6 additions & 3 deletions Modules/itertoolsmodule.c
Original file line number Diff line number Diff line change
Expand Up @@ -2189,7 +2189,8 @@ chain_setstate(chainobject *lz, PyObject *state)
}

PyDoc_STRVAR(chain_doc,
"chain(*iterables) --> chain object\n\
"chain(*iterables)\n\
--\n\
\n\
Return a chain object whose .__next__() method returns elements from the\n\
first iterable until it is exhausted, then elements from the next\n\
Expand Down Expand Up @@ -2528,7 +2529,8 @@ static PyMethodDef product_methods[] = {
};

PyDoc_STRVAR(product_doc,
"product(*iterables, repeat=1) --> product object\n\
"product(*iterables, repeat=1)\n\
--\n\
\n\
Cartesian product of input iterables. Equivalent to nested for-loops.\n\n\
For example, product(A, B) returns the same as: ((x,y) for x in A for y in B).\n\
Expand Down Expand Up @@ -4573,7 +4575,8 @@ static PyMethodDef zip_longest_methods[] = {
};

PyDoc_STRVAR(zip_longest_doc,
"zip_longest(iter1 [,iter2 [...]], [fillvalue=None]) --> zip_longest object\n\
"zip_longest(*iterables, fillvalue=None)\n\
--\n\
\n\
Return a zip_longest object whose .__next__() method returns a tuple where\n\
the i-th element comes from the i-th iterable argument. The .__next__()\n\
Expand Down