[MacPorts] #58331: Tensorflow freezes

[MacPorts]

#58331: Tensorflow freezes
------------------------------+--------------------
  Reporter:  ptighin          |      Owner:  (none)
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.5.4
Resolution:                   |   Keywords:
      Port:  py37-tensorflow  |
------------------------------+--------------------
Description changed by ptighin:

Old description:

> The macports version of tensorflow (both py36-tensorflow and
> py37-tensorflow) freezes when running a very simple script, e.g.,
>
> {{{
> import tensorflow as tf
> a = tf.constant([1.0, 2.0, 3.0, 4.0, 5.0, 6.0], shape=[2, 3], name='a')
> }}}
>
> I don't think the problem lies in the tensorflow binary itself but rather
> somewhere in its dependencies. Evidence: installing the tensorflow binary
> with pip (with all other dependencies still from macports) does not solve
> the issue.
>
> The issue is solved only when I create a clean virtual environment and
> install everything with pip.
>
> I've done a bit of research and it turns out that the execution freezes
> when running
>
> {{{
>   const_tensor = g.create_op(
>       "Const", [], [dtype_value.type],
>       attrs={"value": tensor_value,
>              "dtype": dtype_value},
>       name=name).outputs[0]
> }}}
>
> inside the file
> {{{/opt/local/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7
> /site-packages/tensorflow/python/framework/constant_op.py}}}.

New description:

 The macports version of tensorflow (both py36-tensorflow and
 py37-tensorflow) freezes when running a very simple script, e.g.,

 {{{
 import tensorflow as tf
 a = tf.constant([1.0, 2.0, 3.0, 4.0, 5.0, 6.0], shape=[2, 3], name='a')
 }}}

 I don't think the problem lies in the tensorflow binary itself but rather
 somewhere in its dependencies. Evidence: installing the tensorflow binary
 with pip (with all other dependencies still from macports) does not solve
 the issue.

 The issue is solved only when I create a clean virtual environment and
 install everything with pip.

 I've done a bit of research and it turns out that the execution freezes
 when running

 {{{
   const_tensor = g.create_op(
       "Const", [], [dtype_value.type],
       attrs={"value": tensor_value,
              "dtype": dtype_value},
       name=name).outputs[0]
 }}}

 inside the file
 {{{/opt/local/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7
 /site-packages/tensorflow/python/framework/constant_op.py}}}.

 The tensorflow version is {{{py37-tensorflow @1.13.1}}}.

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Ticket URL: <https://trac.macports.org/ticket/58331#comment:1>
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