PIP download only, not install

First ,python -m pip Will use what you specify as python Of Python The interpreter executes pip. therefore ,/usr/bin/python3.7 -m pip Indicates that you are executing at /usr/bin/python3.7 Interpreter of pip

1、 Only download , Not to install

python -m pip download -d /home/packs  setuptools==33.1.1 # download setuptools==33.1.1 modular , stay /home/packs Under the table of contents 

2、 install

python -m pip install setuptools==33.1.1  # install setuptools==33.1.1 modular , Network environment is required 

python -m pip install --no-index --find-links=/home/packs setuptools==33.1.1  # stay /home/packs find setuptools==33.1.1 Install the module package 

echo 'setuptools==33.1.1' >requirements.txt  # Select the third-party module to be installed 
python -m pip install --no-index --find-links=/home/packs  -r requirements.txt # adopt requirements.txt The name of it , stay /home/packs Find the corresponding module package to install 

3、 uninstall

Version number can be added , Or not

python -m  pip uninstall setuptools