Github user jkbradley commented on a diff in the pull request:
https://github.com/apache/spark/pull/9581#discussion_r48904472
--- Diff: python/pyspark/ml/param/__init__.py ---
@@ -247,7 +248,24 @@ def _set(self, **kwargs):
Sets user-supplied params.
"""
for param, value in kwargs.items():
- self._paramMap[getattr(self, param)] = value
+ p = getattr(self, param)
+ if p.expectedType is None or type(value) == p.expectedType or
value is None:
+ self._paramMap[getattr(self, param)] = value
+ else:
+ try:
+ # Try and do "safe" conversions that don't lose
information
+ if p.expectedType == float:
+ self._paramMap[getattr(self, param)] = float(value)
+ # Python 3 unified long & int
+ elif p.expectedType == int and type(value).__name__ ==
'long':
+ self._paramMap[getattr(self, param)] = value
+ else:
+ raise Exception(
+ "Provided type {0} incompatable with type {1}
for param {2}"
--- End diff --
typo: "compatible"
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