[jira] [Created] (SYSTEMML-2138) mllearn/keras2caffe does not support Python 3

["Jean-Francis Roy (JIRA)" <ji...@apache.org>]

Jean-Francis Roy created SYSTEMML-2138:
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             Summary: mllearn/keras2caffe does not support Python 3
                 Key: SYSTEMML-2138
                 URL: https://issues.apache.org/jira/browse/SYSTEMML-2138
             Project: SystemML
          Issue Type: Bug
            Reporter: Jean-Francis Roy


I am a new user of SystemML and I am not sure if this is supposed to work or not, but I am surprised to see that I cannot follow the documentation's examples using Python 3.

When using `estimators.Keras2DML` function, it fails to import the `keras2caffe` module, as it is compatible with Python 2 only.

Here are the parts of the code that aren't compatible with Python 3:
 * `imap` doesn't exist in itertools anymore, Python 3's `map` returns an iterator already. Fix: use `future` package and import `map` from `builtins`.
 * Dictionary `keys()` now return an iterator that does not support indexing. Instead of `my_dict.keys()[0]`, use `list(my_dict)[0]`.

 

With these changes I can get further using Python 3. I get an exception while converting a model (that works using Keras directly), but this is likely to be unrelated with Python 2/3 support.



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