Hello, this posting isn't about asking for a technical solution. My intention is to understand the design decision Python's core developers made in context of that topic.
The logging module write everything to stderr no matter which logging level is used. The argparse module does it more differentiated. If arguments are mandatory but none are given then argparse produce a short version of the usage info; on stderr. If the user request the usage info via "-h" it goes to stdout. This is the behavior I would expect. Why does logging behave different? DEBUG and INFO imho should go to stdout not stderr. Of course I could modify the handlers etc. to workaround this. But I assume that there was something in mind of the Python developers when they decided that. My goal is not to divide between the use of print() or logging.info() in my own code. This would mess up a lot. -- https://mail.python.org/mailman/listinfo/python-list