srowen commented on a change in pull request #27525:
URL: https://github.com/apache/spark/pull/27525#discussion_r425318111
##########
File path: python/pyspark/streaming/dstream.py
##########
@@ -418,10 +418,12 @@ def slice(self, begin, end):
def _validate_window_param(self, window, slide):
duration = self._jdstream.dstream().slideDuration().milliseconds()
if int(window * 1000) % duration != 0:
- raise ValueError("windowDuration must be multiple of the slide
duration (%d ms)"
+ raise ValueError("windowDuration must be multiple of the parent " \
Review comment:
Looks like the `\` causes style checks to fail:
```
./python/pyspark/streaming/dstream.py:421:79: E502 the backslash is
redundant between brackets
./python/pyspark/streaming/dstream.py:425:78: E502 the backslash is
redundant between brackets
```
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