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gh-111942: Fix SystemError in the TextIOWrapper constructor #112061

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merged 3 commits into from
Nov 14, 2023
Merged

gh-111942: Fix SystemError in the TextIOWrapper constructor #112061

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0a85bf3
gh-111942: Fix SystemError in the TextIOWrapper constructor
serhiy-storchaka Nov 14, 2023
f290520
Update Modules/_io/textio.c
vstinner Nov 14, 2023
43b222c
Enable test on embedded null in errors on _io test
vstinner Nov 14, 2023
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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Library/2023-11-14-18-43-55.gh-issue-111942.x1pnrj.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
Fix SystemError in the TextIOWrapper constructor with non-encodable "errors"
argument in non-debug mode.
8 changes: 6 additions & 2 deletions Modules/_io/textio.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1112,6 +1112,10 @@ _io_TextIOWrapper___init___impl(textio *self, PyObject *buffer,
else if (io_check_errors(errors)) {
return -1;
}
const char *errors_str = PyUnicode_AsUTF8(errors);
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if (errors_str == NULL) {
return -1;
}

if (validate_newline(newline) < 0) {
return -1;
Expand Down Expand Up @@ -1184,11 +1188,11 @@ _io_TextIOWrapper___init___impl(textio *self, PyObject *buffer,
/* Build the decoder object */
_PyIO_State *state = find_io_state_by_def(Py_TYPE(self));
self->state = state;
if (_textiowrapper_set_decoder(self, codec_info, PyUnicode_AsUTF8(errors)) != 0)
if (_textiowrapper_set_decoder(self, codec_info, errors_str) != 0)
goto error;

/* Build the encoder object */
if (_textiowrapper_set_encoder(self, codec_info, PyUnicode_AsUTF8(errors)) != 0)
if (_textiowrapper_set_encoder(self, codec_info, errors_str) != 0)
goto error;

/* Finished sorting out the codec details */
Expand Down