[jira] [Created] (BEAM-1947) DisplayData raises exception when passed unicode string

[Brent Walter (JIRA)]

Brent Walter created BEAM-1947:
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             Summary: DisplayData raises exception when passed unicode string
                 Key: BEAM-1947
                 URL: https://issues.apache.org/jira/browse/BEAM-1947
             Project: Beam
          Issue Type: Bug
          Components: sdk-py
    Affects Versions: 0.6.0
         Environment: Python 2.7.13
            Reporter: Brent Walter
            Assignee: Ahmet Altay
            Priority: Trivial


Passing a unicode string as file_pattern to apache_beam.io.ReadFromText 
generates a ValueError: 'Invalid DisplayDataItem. Value {} is of an unsupported 
type.'

Cause:
In apache_beam/transforms/display.py:
typeDict in DisplayDataItem doesn't contain an entry for unicode
_get_value_type(u'unicode') == None
is_valid() raises ValueError



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