candlerb commented on issue #5620: cpp/python API: please log to stderr instead 
of stdout by default
URL: https://github.com/apache/pulsar/issues/5620#issuecomment-552565188
 
 
   I have a workaround:
   
   ```
       fd = os.dup(1)    # copy the original stdout
       os.dup2(2, 1)     # join stdout onto stderr
       new_stdout = os.fdopen(fd, "w")  # wrap the original stdout
   ```
   
   ... then write to `new_stdout` instead of `stdout`.  Anything which is 
written to fd 1 gets sent to stderr.

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