Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/22523#discussion_r219686544
--- Diff: python/pyspark/context.py ---
@@ -537,8 +537,10 @@ def _serialize_to_jvm(self, data, serializer,
reader_func, createRDDServer):
# parallelize from there.
tempFile = NamedTemporaryFile(delete=False, dir=self._temp_dir)
--- End diff --
Actually, we better use a context manager:
```python
with NamedTemporaryFile(delete=False, dir=self._temp_dir) as tempfile:
...
```
but not a big deal. LGTM
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