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Make contents of __init__.py equal across projects
Signed-off-by: Pieter Noordhuis <pieter.noordhuis@databricks.com>
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Lines changed: 30 additions & 3 deletions

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‎src/databricks/__init__.py‎

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# https://packaging.python.org/guides/packaging-namespace-packages/#pkgutil-style-namespace-packages
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# This file should only contain the following line. Otherwise other sub-packages databricks.* namespace
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# may not be importable.
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# See: https://packaging.python.org/guides/packaging-namespace-packages/#pkgutil-style-namespace-packages
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#
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# This file must only contain the following line, or other packages in the databricks.* namespace
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# may not be importable. The contents of this file must be byte-for-byte equivalent across all packages.
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# If they are not, parallel package installation may lead to clobbered and invalid files.
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# Also see https://github.com/databricks/databricks-sdk-py/issues/343.
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__path__ = __import__("pkgutil").extend_path(__path__, __name__)

‎tests/unit/test_init_file.py‎

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import hashlib
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import unittest
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class InitFileTests(unittest.TestCase):
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"""
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Micro test to confirm the contents of `databricks/__init__.py` does not change.
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Also see https://github.com/databricks/databricks-sdk-py/issues/343#issuecomment-1866029118.
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"""
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def test_init_file_contents(self):
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with open('src/databricks/__init__.py') as f:
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init_file_contents = f.read()
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# This hash is the expected hash of the contents of `src/databricks/__init__.py`.
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# It must not change, or else parallel package installation may lead to clobbered and invalid files.
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expected_sha1 = '2772edbf52e517542acf8c039479c4b57b6ca2cd'
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actual_sha1 = hashlib.sha1(init_file_contents.encode('utf-8')).hexdigest()
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self.assertEqual(expected_sha1, actual_sha1)
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if __name__ == '__main__':
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unittest.main()

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