[R] how to add comma to string vector?

[Rasmus Liland]

> raws <- c("field_1", "field_2",  "field_3")
> reticulate::r_to_py(x=raws)
No non-system installation of Python could be found.
Would you like to download and install Miniconda?
Miniconda is an open source environment management system for Python.
See https://docs.conda.io/en/latest/miniconda.html for more details.

Would you like to install Miniconda? [Y/n]: n
Installation aborted.
['field_1', 'field_2', 'field_3']
> reticulate::py_config()
python:         /usr/bin/python3
libpython:      /usr/lib/libpython3.10.so
pythonhome:     //usr://usr
version:        3.10.5 (main, Jun  6 2022, 18:49:26) [GCC 12.1.0]
numpy:          /usr/lib/python3.10/site-packages/numpy
numpy_version:  1.22.4

python versions found:
 /usr/bin/python3
 /usr/bin/python
> reticulate::py_run_string('print(1+1)')
2
> reticulate::r_to_py(x=raws)
['field_1', 'field_2', 'field_3']