how to download pip packages for offline install code example

Example: pip offline package install

1 -  pip freeze > requirements.txt
2 -  mkdir wheelhouse && pip download -r requirements.txt -d wheelhouse
3 -  Copy requirements.txt into wheelhouse directory
4 -  Archive wheelhouse into wheelhouse.tar.gz with tar -zcf wheelhouse.tar.gz wheelhouse
	 or make simply zip or rar file
5 -  Then upload wheelhouse.tar.gz or zip or rar to your target machine:
6 -  Execute 
	 tar -zxf wheelhouse.tar.gz to extract the files or unzip
7 -  Execute 
	 pip install -r wheelhouse/requirements.txt --no-index --find-links wheelhouse to install the libs and their dependencies