Check that stdout exposes isatty
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In embedded environments and other contexts, the `sys.stdout` stream may be a custom implementation, and that implementation may not implement `isatty`. Check for its existence before use.
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In embedded environments and other contexts, the
sys.stdoutstream maybe a custom implementation, and that implementation may not implement
isatty. Check for its existence before use. We ran into this in the caseof ArcGIS Pro which contains embedded Notebooks and uses fastprogress.