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bzrlib/__init__.py
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                    'Consider using bzrlib.ignores.add_unique_user_ignores'
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                    ' or bzrlib.ignores.add_runtime_ignores')
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@deprecated_function(zero_seven)
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def get_bzr_revision():
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    """If bzr is run from a branch, return (revno,revid) or None."""
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    import bzrlib.errors
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    from bzrlib.branch import Branch
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    try:
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        branch = Branch.open(os.path.dirname(__path__[0]))
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        rh = branch.revision_history()
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        if rh:
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            return len(rh), rh[-1]
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        else:
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            return None
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    except bzrlib.errors.BzrError:
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        return None
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def test_suite():
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    import tests
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    return tests.test_suite()