Github user viirya commented on a diff in the pull request: https://github.com/apache/spark/pull/21675#discussion_r199316192 --- Diff: python/pyspark/ml/util.py --- @@ -63,7 +63,7 @@ def _randomUID(cls): Generate a unique unicode id for the object. The default implementation concatenates the class name, "_", and 12 random hex chars. """ - return unicode(cls.__name__ + "_" + uuid.uuid4().hex[12:]) + return unicode(cls.__name__ + "_" + uuid.uuid4().hex[:12]) --- End diff -- `uuid.uuid4().hex[-12:]`? In Scala side, it is `UUID.randomUUID().toString.takeRight(12)`.
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