windows执行pip download下载的安装包，及依赖的requirement.txt文件： absl-py==0.8.0 alabaster==0.7.12 alembic==1.0.10 allpairspy==2.5.0 anaconda-client==1.7.2 anaconda-navigator==1.9.7 anaconda-project==0.8.2 asn1crypto==0.24.0 astor==0.8.0 astroid==2.2.5 astropy==3.1.2 atomicwrites==1.3.0 attrs==19.1.0