8000 bpo-31271: fix an assertion failure in io.TextIOWrapper.write by orenmn · Pull Request #3201 · python/cpython · GitHub
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bpo-31271: fix an assertion failure in io.TextIOWrapper.write #3201

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Merged
merged 3 commits into from
Aug 25, 2017
Merged

bpo-31271: fix an assertion failure in io.TextIOWrapper.write #3201

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b89786b
init commit
orenmn Aug 24, 2017
b4ccaa6
simplify the test
orenmn Aug 25, 2017
2872754
added a NEWS.d item, and made the error msg more like that of the sim…
orenmn Aug 25, 2017
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added a NEWS.d item, and made the error msg more like that of the sim… 
…ilar error when the decoder doesn't return a str.
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@orenmn
orenmn committed Aug 25, 2017
commit 287275407ee485cad5f8041aa7ffc99ab8056c7c
2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Core and Builtins/2017-08-25-20-43-22.bpo-31271.YMduKF.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
Fix an assertion failure in the write() method of `io.TextIOWrapper`, when
the encoder doesn't return a bytes object. Patch by Oren Milman.
3 changes: 1 addition & 2 deletions Modules/_io/textio.c
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Expand Up @@ -1381,8 +1381,7 @@ _io_TextIOWrapper_write_impl(textio *self, PyObject *text)
return NULL;
if (!PyBytes_Check(b)) {
PyErr_Format(PyExc_TypeError,
"encode() should have returned a bytes object, not "
"'%.200s'",
"encoder should return a bytes object, not '%.200s'",
Py_TYPE(b)->tp_name);
Py_DECREF(b);
return NULL;
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