R reticulate package for sourcing python script - ModuleNotFoundError: No module named 'rpytools'

Question

Background

I have a Python script, pythonScript.py that I want to source via an R script, rScript.r.

I use VS Studio Code Insiders to run my R scripts, specifically using the radian console; months ago, I followed this tutorial (or another similar tutorial) to set up my environment.

Problem

When using functions from the reticulate package, an error is thrown:

ModuleNotFoundError: No module named 'rpytools'.

In an effort to make a minimal reproducible example, I will use the py_config function from reticulate, although ultimately my goal is to use source_python to run my pythonScript.py.

Input:

install.packages("reticulate")
reticulate::use_python("<redacted>/anaconda3/python.exe")
reticulate::py_config()
# The rest WILL NOT run in radian from VS Code Insiders
1+1

Output:

Error in py_module_import(module, convert = convert) : 
  ModuleNotFoundError: No module named 'rpytools'

I tried locating and moving the location of the rpytools folder, but regardless of where I moved it to, I couldn't get around the error. I also tried uninstalling and re-installing reticulate, but I never managed to get around this error while using VS Code.

Two sub-optimal work-arounds:

1. If I run the same code in R Studio, there is no error and it executes fine. However, I would like to keep my project in VS Code.
2. In VS Code, if I wrap the py_config step in try and then run it again (in the same R session), the script finishes running without a problem! This feels 'hacky' and I would like to avoid using this tactic to get my script to execute.

Input:

install.packages("reticulate")
reticulate::use_python("<redacted>/anaconda3/python.exe")
# The rest WILL run
try(reticulate::py_config())
reticulate::py_config()
1+1

Output:

Error in py_module_import(module, convert = convert) : 
  ModuleNotFoundError: No module named 'rpytools'      
python:         <redacted>/anaconda3/python.exe
libpython:      <redacted>/anaconda3/python38.dll
pythonhome:     <redacted>/anaconda3
version:        3.8.3 (default, Jul  2 2020, 17:30:36) [MSC v.1916 64 bit (AMD64)]
Architecture:   64bit
numpy:          <redacted>/anaconda3/Lib/site-packages/numpy
numpy_version:  1.19.1

NOTE: Python version was forced by RETICULATE_PYTHON
[1] 2

Questions:

1. Why does the error only arise when using VS Code Studio Insiders / radian but not in R Studio?
2. Why does it fail on the first call of py_config (or other reticulate functions) in a new R session, but it does not fail on subsequent calls in the same R session?
3. How can I 'fix' this so that it will run on the first call in VS Code?

Related posts:

• Stack Overflow 1
• Stack Overflow 2
• Github
• Git memory

Answer 1

等待大神答复