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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":" why sys.stdout returned null","articleBody":"### Environment\r\n\r\n-   Pythonnet version: 2.2.2 (.NET 4, x64)\r\n-   Python version: 3.5\r\n-   Operating System: Windows 10\r\n\r\n### Details\r\nPython is embedded in my .NET application using pythonnet.  I found the output of the print statement in a python script is not showing on the screen until a \"sys.stdout.flush()\" called. I don't known how to redirect sys.stdout in .NET.\r\nIn order to call the flush() method directly in .NET, I tried\r\n ```csharp\r\ndynamic sys = PythonEngine.ImportModule(\"sys\");\r\nvar stdout= sys.GetAttr(\"stdout\"); // returns None\r\n```\r\n  and both sys.stdout and the variable stdout returned are None here.\r\n\r\nIn python, I tried \r\n```python\r\nimport sys\r\nprint(getattr(sys, 'stdout'))\r\n```\r\nand it outputs a `_io.TextIOWrapper` object.   \r\n\r\nWhy sys.stdout returned null here? How to make the output of python print statement show automatically?\r\n\r\nThanks.","author":{"url":"https://github.com/yagweb","@type":"Person","name":"yagweb"},"datePublished":"2017-02-09T03:28:29.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":13},"url":"https://github.com/370/pythonnet/issues/370"}