wesm commented on a change in pull request #7522: URL: https://github.com/apache/arrow/pull/7522#discussion_r443913968
########## File path: cpp/src/arrow/python/arrow_to_pandas.cc ########## @@ -1269,13 +1283,18 @@ class DatetimeTZWriter : public DatetimeNanoWriter { : DatetimeNanoWriter(options, num_rows, 1), timezone_(timezone) {} protected: - Status GetResultBlock(PyObject** out) override { return GetBlock1D(out); } + Status GetResultBlock(PyObject** out) override { + RETURN_NOT_OK(MakeBlock1D()); + *out = block_arr_.obj(); + return Status::OK(); + } Status AddResultMetadata(PyObject* result) override { PyObject* py_tz = PyUnicode_FromStringAndSize( timezone_.c_str(), static_cast<Py_ssize_t>(timezone_.size())); RETURN_IF_PYERROR(); PyDict_SetItemString(result, "timezone", py_tz); + Py_DECREF(py_tz); Review comment: This was an small memory leak that users are unlikely to observe but I found it while looking at usages of PyDict_SetItemString (which increments the reference count of the passed dict value) ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org