damccorm opened a new issue, #20526:
URL: https://github.com/apache/beam/issues/20526
The InteractiveRunner crashes when given a pipeline that includes a
cross-language transform.
Here's the example I tried to run in a jupyter notebook:
```
p = beam.Pipeline(InteractiveRunner())
pc = (p | SqlTransform("""SELECT
CAST(1 AS INT)
AS `id`,
CAST('foo' AS VARCHAR) AS `str`,
CAST(3.14 AS DOUBLE) AS `flt`"""))
df
= interactive_beam.collect(pc)
```
The problem occurs when
[pipeline_fragment.py](https://github.com/apache/beam/blob/dce1eb83b8d5137c56ac58568820c24bd8fda526/sdks/python/apache_beam/runners/interactive/pipeline_fragment.py#L66)
creates a copy of the pipeline by [writing it to proto and reading it
back](https://github.com/apache/beam/blob/dce1eb83b8d5137c56ac58568820c24bd8fda526/sdks/python/apache_beam/runners/interactive/pipeline_fragment.py#L120).
Reading it back fails because some of the pipeline is not written in Python.
Imported from Jira
[BEAM-10708](https://issues.apache.org/jira/browse/BEAM-10708). Original Jira
may contain additional context.
Reported by: bhulette.
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