yanzhuohao/pypi: links for abstract-singleton

yanzhuohao/pypi abstract_singleton-1.0.1.tar.gz
yanzhuohao/pypi abstract_singleton-1.0.1-py3-none-any.whl
yanzhuohao/pypi abstract_singleton-1.0.tar.gz
yanzhuohao/pypi abstract_singleton-1.0-py3-none-any.whl