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subprocess.Popen.stderr

Popen.stderr

If the stderr argument was PIPE, this attribute is a readable stream object as returned by open(). Reading from the stream provides error output from the child process. If the universal_newlines argument was True, the stream is a text stream, otherwise it is a byte stream. If the stderr argument was not PIPE, this attribute is None.

Links:

https://docs.python.org/3.5/library/subprocess.html#subprocess.Popen.stderr

doc_python

2016-10-07 17:43:36

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