rpy2 is outdated

Describe the current behavior

rpy2 installed by default is an outdated version of rpy2 (3.4.5).

import rpy2
rpy2.__version__

Describe the expected behavior

The code above returns 3.5.5.

What web browser you are using

Firefox.

Additional context

https://colab.research.google.com/drive/1pepfsZT8Zak_IxbH3XYxofUAogGkUn4c?usp=sharing

[bdwaldie]

It looks like r2py has been updated to the latest version, but after the update I am unable to run any commands using cell magic.

Running the following in a new notebook:

%load_ext rpy2.ipython

%%R x <- seq(0, 2*pi, length.out=50) x

Returns this error:

---

NotImplementedError Traceback (most recent call last) <ipython-input-2-cc2a3aca7f04> in <module> ----> 1 get_ipython().run_cell_magic(‘R’, ‘’, ‘x <- seq(0, 2*pi, length.out=50)\nx\n’)

8 frames <decorator-gen-122> in R(self, line, cell, local_ns)

/usr/local/lib/python3.7/dist-packages/rpy2/robjects/conversion.py in _py2rpy(obj) 240 raise NotImplementedError( 241 “Conversion ‘py2rpy’ not defined for objects of type ‘%s’” % –> 242 str(type(obj)) 243 ) 244

NotImplementedError: Conversion ‘py2rpy’ not defined for objects of type ‘<class ‘str’>’

---

Here is a link to a notebook with the code above that shows the error. https://colab.research.google.com/drive/1digJ6kwHEu7192lEN15qtDz0-ccdSJXG?usp=sharing

[lgautier]

I opened an issue to upgrade ipykernel: https://github.com/googlecolab/colabtools/issues/3212