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Fix my last change on PyUnicode_Join(): don't process separator if len==1

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This commit is contained in:
Victor Stinner 2011-10-06 12:32:37 +02:00
parent 25a4b29c95
commit acf47b807f
1 changed files with 32 additions and 28 deletions
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8
Objects/unicodeobject.c
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@ -9145,13 +9145,16 @@ PyUnicode_Join(PyObject *separator, PyObject *seq)
/* If singleton sequence with an exact Unicode, return that. */
items = PySequence_Fast_ITEMS(fseq);
if (seqlen == 1 && PyUnicode_CheckExact(items[0])) {
if (seqlen == 1) {
if (PyUnicode_CheckExact(items[0])) {
res = items[0];
Py_INCREF(res);
Py_DECREF(fseq);
return res;
}
sep = NULL;
}
else {
/* Set up sep and seplen */
if (separator == NULL) {
/* fall back to a blank space separator */
@ -9177,6 +9180,7 @@ PyUnicode_Join(PyObject *separator, PyObject *seq)
above case of a blank separator */
Py_INCREF(sep);
}
}
/* There are at least two things to join, or else we have a subclass
* of str in the sequence.