Mike Dusenberry created SYSTEMML-830:
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Summary: Python API Broken In Python 3 Due To Changes In
Dictionary Iteration
Key: SYSTEMML-830
URL: https://issues.apache.org/jira/browse/SYSTEMML-830
Project: SystemML
Issue Type: Bug
Affects Versions: SystemML 0.10, SystemML 0.11
Reporter: Mike Dusenberry
Assignee: Mike Dusenberry
Priority: Minor
Currently, the {{executeScript(...)}} function in the Python API
({{SystemML.py}}) has a bug in Python 3 due to changes from Python 2 -> 3
dealing with iteration over a dictionary. {{dictName.items()}} returned a list
of the current items in the dictionary in Python 2, while it returns a live
iterable in Python 3. The consequence is that a dictionary cannot be modified
in a loop using {{dictName.items()}} in Python 3. This fix will simply force
the iterable to a list in either Python version, as discussed in \[1]. We
simply use this in the existing API for lightweight argument parsing, so
performance is not a concern.
\[1]: [PEP 0469 |
http://legacy.python.org/dev/peps/pep-0469/#lists-as-mutable-snapshots]
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