[PYTHON] distutils log does not appear

--distutils changes the log output level with a module called distutils.log. Since distutils is used from setup.py, command line arguments etc. are included in setuptools and cannot be controlled by the user. But changing this log level doesn't seem easy --pip is running setup.py egg_info with no optional arguments, in which the build runs and stops here if there is a problem. The log level cannot be changed because it is executed without arguments. egg_info seems to do something different from build, but it may be that the setup.py is badly written to stop here. ――After a lot of research, I found that the cython installation problem caused the build to run on egg_info because I forcibly tampered with the finalize_option of build_ext. The cython problem is deep-rooted ... --setup.py install -vvv allows you to pass arguments for the install command. However, in reality, setuptools is executing the easy_install command inside, and the -vvv argument (verbose = 3) is not passed here. Therefore, the log level cannot be changed. By the way, this argument is parsed in setuptools and converted to {'verbose': 3}. However, 3 is ʻint --If you add the global item to the setup.cfg file, setup.py will read it and add the arguments. However, if you specifyverbose = 3, 3` is treated as a string internally, and you cannot change the log level without getting caught in the if statement. --setup.py -vvv You can actually change the log level by installing. The option specified before the command name is called global-option and is added to all setuptools commands. Therefore, this argument is also passed to easy_install, so you can change the log level. By the way, pip's global-option seems to support this, but as mentioned above, this argument is not passed to egg_info.

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