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Backport PR #62217 on branch 2.3.x (BUG: fix memory leak in JSON datetime serialization) #62253

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Merged
merged 1 commit into from
Sep 21, 2025
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Backport PR #62217 on branch 2.3.x (BUG: fix memory leak in JSON datetime serialization) #62253

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3 changes: 2 additions & 1 deletion pandas/_libs/src/vendored/ujson/python/objToJSON.c
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Original file line number Diff line number Diff line change
Expand Up @@ -346,7 +346,8 @@ static char *PyDateTimeToIsoCallback(JSOBJ obj, JSONTypeContext *tc,
}

NPY_DATETIMEUNIT base = ((PyObjectEncoder *)tc->encoder)->datetimeUnit;
return PyDateTimeToIso(obj, base, len);
GET_TC(tc)->cStr = PyDateTimeToIso(obj, base, len);
return GET_TC(tc)->cStr;
}

static char *PyTimeToJSON(JSOBJ _obj, JSONTypeContext *tc, size_t *outLen) {
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