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Fixing AerJob::status() method to deal with Python's Future #1215

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merged 2 commits into from Nov 5, 2018
Merged

Fixing AerJob::status() method to deal with Python's Future #1215

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0e41857
Fixing AerJob::status() method to deal with Python's Future
atilag Nov 5, 2018
2c12b7c
Add CHAGELOG entry for AerJob PENDING state fix
atilag Nov 5, 2018
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1 change: 1 addition & 0 deletions CHANGELOG.rst
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Expand Up @@ -61,6 +61,7 @@ Fixed
- Fixed horizontal spacing when drawing barriers before CCNOT gates in latex
circuit plots (#1051)
- Use case insensitive matching when comparing premium account URLs. (#1102)
- Fixed AerJob status when the submitted Job is in a PENDING state. (#1215)

Removed
-------
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8 changes: 6 additions & 2 deletions qiskit/backends/aer/aerjob.py
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Expand Up @@ -114,8 +114,12 @@ def status(self):
elif self._future.done():
_status = JobStatus.DONE if self._future.exception() is None else JobStatus.ERROR
else:
raise JobError('Unexpected behavior of {0}'.format(
self.__class__.__name__))
# Note: There is an undocumented Future state: PENDING, that seems to show up when
# the job is enqueued, waiting for someone to pick it up. We need to deal with this
# state but there's no public API for it, so we are assuming that if the job is not
# in any of the previous states, is PENDING, ergo INITIALIZING for us.
_status = JobStatus.INITIALIZING

return _status

def backend_name(self):
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