python - py uses logging collection 2&1 to output information

Question

As shown in the screenshot below, I want the normal output of logging to be an empty file and the error output to server1.err. However, during actual operation, the normal output is also output to server1.err. How can I achieve this so that only the error log is output to server1.err? middle? ? ?

習慣沉默 · Answer

Did you use print for log output? If you use the logging module, you should not need to point to the output. You can point info and warning to different loggers

淡淡烟草味 · Answer

You first try redirecting only errors and redirecting normally, instead of redirecting both at the same time, to see if the code is wrong.