How to install rpy2 on colab.research?

Question

How to install rpy2 on colab.research.google? I tried the command:

pip install rpy2 
import rpy2

but it doesn't work. This is the error obtained:

Collecting rpy2
Using cached https://files.pythonhosted.org/packages/02/d1/074ffbbe7b4bf74c60b75d74c8e67a1e4515b0d85f85cd6540e39610754a/rpy2-2.9.5.tar.gz
Complete output from command python setup.py egg_info:
Error: Tried to guess R's HOME but no command 'R' in the PATH.

----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-je87ula0/rpy2/

---------------------------------------------------------------------------

ModuleNotFoundError                       Traceback (most recent call last)

<ipython-input-15-93ecdf466471> in <module>()
  1 get_ipython().system('pip install rpy2')
----> 2 import rpy2

ModuleNotFoundError: No module named 'rpy2'

Thanks in advance for your help, Ines.

Answer 1

Write !pip install rpy2 instead of pip install rpy2

EDIT

According to the documentation of rpy2 that can be found here :

Running Rpy2 will require compiled libraries for R, Python, and readline; building rpy2 will require the corresponding development headers (check the documentation for more information about building rpy2).

So, this should work

!apt-get install r-base
!pip install rpy2

Answer 2

!apt-get install r-base
!pip install rpy2
import rpy2

It works ! Thank you Anwarvicc