Install them normally (outside of Abaqus) and then copy them to the win_b64\code\python2.x\lib directory of the Abaqus installation folder. You have to ensure version compatibility.
I am getting this error I couldn't install pandas. Is there any other way?
ImportError: C extension: y not built. If you want to import pandas from the source directory, you may need to run 'python setup.py build_ext --inplace' to build the C extensions first.