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_sre.compile overwritesTypeError withOverflowError #110590

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sobolevn
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@sobolevn

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@sobolevn

Bug report

Reproduction:

>>>import_sre>>>_sre.compile('',0, ['abc'],0, {}, ())Traceback (mostrecentcalllast):File"<stdin>",line1,in<module>OverflowError:regularexpressioncodesizelimitexceeded

It should be:

>>>import_sre>>>_sre.compile('',0, ['abc'],0, {}, ())Traceback (mostrecentcalllast):File"<stdin>",line1,in<module>TypeError:anintegerisrequired

Because the third arg iscode: object(subclass_of='&PyList_Type'), it is assumed to be integers inside.

Problematic lines:

cpython/Modules/_sre/sre.c

Lines 1510 to 1515 indef7ea5

unsigned longvalue=PyLong_AsUnsignedLong(o);
self->code[i]= (SRE_CODE)value;
if ((unsigned long)self->code[i]!=value) {
PyErr_SetString(PyExc_OverflowError,
"regular expression code size limit exceeded");
break;

They do not check forPyLong_AsUnsignedLong errors.
I have a PR ready :)

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