<<< ebuild_homepage_unsync >>>
  2|dev-python/sip|qt@gentoo.org
<<< open bugs >>>
  https://bugs.gentoo.org/793986 app-text/calibre-5.16.1:_[Errno_2]_No_such_file_or_directory:_'sip'_with_&gt;=dev-python/sip-5
  https://bugs.gentoo.org/797535 dev-python/PyQt5-5.15.2_w/_dev-python/sip-5.5.0-r2:_the_sip_module_implements_API_v12.0_to_v12.7_but_the_PyQt5.QtCore_module_requires_API_v12.8