I tried his; rpy2 installation errors but it doesn't help either. I tried many! Please help!
Collecting rpy2
Using cached rpy2-2.9.2.tar.gz
Complete output from command python setup.py egg_info:
rpy2 is no longer supporting Python < 3. Consider using an older rpy2 release when using an older Python release.
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Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-ivarJ9/rpy2/