pip download 没有用我指定的 版本， 指定 jangorestframework==3.13.1，为什么他找的 都是4 以上的。。
version: 4.0, 4.0.1 ...
运行
python3 -m pip download --only-binary=:all: -d /mnt/workspace -r untitled.txt -i https://pypi.tuna.tsinghua.edu.cn/simple/ --python-version 3.7.4
ERROR: Ignored the following versions that require a different python version: 4.0 Requires-Python >=3.8; 4.0.1 Requires-Python >=3.8; 4.0.10 Requires-Python >=3.8; 4.0.2 Requires-Python >=3.8; 4.0.3 Requires-Python >=3.8; 4.0.4 Requires-Python >=3.8; 4.0.5 Requires-Python >=3.8; 4.0.6 Requires-Python >=3.8; 4.0.7 Requires-Python >=3.8; 4.0.8 Requires-Python >=3.8; 4.0.9 Requires-Python >=3.8; 4.0a1 Requires-Python >=3.8; 4.0b1 Requires-Python >=3.8; 4.0rc1 Requires-Python >=3.8; 4.1 Requires-Python >=3.8; 4.1.1 Requires-Python >=3.8; 4.1.2 Requires-Python >=3.8; 4.1.3 Requires-Python >=3.8; 4.1.4 Requires-Python >=3.8; 4.1.5 Requires-Python >=3.8; 4.1.6 Requires-Python >=3.8; 4.1.7 Requires-Python >=3.8; 4.1.8 Requires-Python >=3.8; 4.1a1 Requires-Python >=3.8; 4.1b1 Requires-Python >=3.8; 4.1rc1 Requires-Python >=3.8; 4.2 Requires-Python >=3.8; 4.2a1 Requires-Python >=3.8; 4.2b1 Requires-Python >=3.8; 4.2rc1 Requires-Python >=3.8
ERROR: Could not find a version that satisfies the requirement jangorestframework==3.13.1 (from versions: none)
ERROR: No matching distribution found for jangorestframework==3.13.1
