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gh-109523: Raise a BlockingIOError if reading text from a non-blocking stream cannot immediately return bytes. (GH-122933)

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Giovanni Siragusa 2024-12-02 14:18:30 +01:00 • committed by GitHub
parent 930ba0ce60
commit 31f16e427b
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7 changed files with 57 additions and 1 deletions
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6
Modules/_io/textio.c
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@ -1992,6 +1992,12 @@ _io_TextIOWrapper_read_impl(textio *self, Py_ssize_t n)
if (bytes == NULL)
goto fail;
if (bytes == Py_None){
Py_DECREF(bytes);
PyErr_SetString(PyExc_BlockingIOError, "Read returned None.");
return NULL;
}
_PyIO_State *state = self->state;
if (Py_IS_TYPE(self->decoder, state->PyIncrementalNewlineDecoder_Type))
decoded = _PyIncrementalNewlineDecoder_decode(self->decoder,