Synthesis failures due to ModuleNotFoundError

[larkee]

Yesterday, the synthesis of python-spanner failed due to a ModuleNotFoundError as shown in the following traceback:

Traceback (most recent call last):
  File "/home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/sandbox/linux-sandbox/42/execroot/com_google_googleapis/bazel-out/host/bin/external/gapic_generator_python/gapic_plugin.runfiles/gapic_generator_python/gapic/cli/generate_with_pandoc.py", line 3, in <module>
    from gapic.cli import generate
  File "/home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/sandbox/linux-sandbox/42/execroot/com_google_googleapis/bazel-out/host/bin/external/gapic_generator_python/gapic_plugin.runfiles/gapic_generator_python/gapic/cli/generate.py", line 23, in <module>
    from gapic import generator
  File "/home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/sandbox/linux-sandbox/42/execroot/com_google_googleapis/bazel-out/host/bin/external/gapic_generator_python/gapic_plugin.runfiles/gapic_generator_python/gapic/generator/__init__.py", line 21, in <module>
    from .generator import Generator
  File "/home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/sandbox/linux-sandbox/42/execroot/com_google_googleapis/bazel-out/host/bin/external/gapic_generator_python/gapic_plugin.runfiles/gapic_generator_python/gapic/generator/generator.py", line 24, in <module>
    from gapic.samplegen import manifest, samplegen
  File "/home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/sandbox/linux-sandbox/42/execroot/com_google_googleapis/bazel-out/host/bin/external/gapic_generator_python/gapic_plugin.runfiles/gapic_generator_python/gapic/samplegen/__init__.py", line 15, in <module>
    from gapic.samplegen import samplegen
  File "/home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/sandbox/linux-sandbox/42/execroot/com_google_googleapis/bazel-out/host/bin/external/gapic_generator_python/gapic_plugin.runfiles/gapic_generator_python/gapic/samplegen/samplegen.py", line 27, in <module>
    from gapic.schema import wrappers
  File "/home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/sandbox/linux-sandbox/42/execroot/com_google_googleapis/bazel-out/host/bin/external/gapic_generator_python/gapic_plugin.runfiles/gapic_generator_python/gapic/schema/__init__.py", line 23, in <module>
    from gapic.schema.api import API
  File "/home/kbuilder/.cache/bazel/_bazel_kbuilder/a732f932c2cbeb7e37e1543f189a2a73/sandbox/linux-sandbox/42/execroot/com_google_googleapis/bazel-out/host/bin/external/gapic_generator_python/gapic_plugin.runfiles/gapic_generator_python/gapic/schema/api.py", line 29, in <module>
    from google.api_core import exceptions  # type: ignore
ModuleNotFoundError: No module named 'google.api_core'

From the full log, this issue seems to be causing synth failures for up to 71 libraries.

[busunkim96]

This is now fixed. See googleapis/gapic-generator#3334