How to install pip pacakges offline?

If you want install python libs and their dependencies offline, finish following these steps on a machine with the same CPU architecture, OS, network connected, and python installed:

On the system that has access to internet

1. Create a requirements.txt file with similar content (Note - these are the libraries you wish to download):

   Flask==0.12
   requests>=2.7.0
   scikit-learn==0.19.1
   numpy==1.14.3
   pandas==0.22.0
   

   One option for creating the requirements file is to use pip freeze > requirements.txt. This will list all libraries in your environment. Then you can go in to requirements.txt and remove un-needed ones.

2. Execute following command to download libs and their dependencies to directory wheelhouse.

   $ mkdir wheelhouse
   $ pip download -r requirements.txt -d wheelhouse
   

3. Copy requirements.txt into wheelhouse directory.

4. Archive wheelhouse into wheelhouse.tar.gz with command tar -zcf wheelhouse.tar.gz wheelhouse. Then upload wheelhouse.tar.gz to your target machine.

On the system that has no access to internet

1. Execute tar -zxf wheelhouse.tar.gz to extract the files.

2. Execute pip install -r wheelhouse/requirements.txt --no-index --find-links wheelhouse to install the libs and their dependencies