Error installing rpy2 version 2.9.4 using conda

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Python

R

Hello,
i tried following ways but none of them worked
1. trying to install rpy2 (version 2.9.4) using anaconda, facing error of python version unsatisfied (when python == 3.8.3 or anything over python==3.7.1).
2. when tried same using pip install, facing error of egg-info.
3. Also tried installing rpy2 version 2.9.4 on virtual kernel using pip, with python(3.7.1). rpy2 version is as specified but r-base(Dependency) is of higher version

What I have tried:

Please let me know if there is any other way to deal with this