在网状结构中难以在RStudio中加载Python

Question

我正在尝试运行同时使用R和Python代码块的R Markdown文档。我在macOS Catalina版本10.15.2上，R版本是3.6.2，RStudio版本是1.2.5033。我正在使用reticulate软件包版本1.14。

which python在终端上显示/Users/dhirajkhanna/opt/anaconda3/bin/python，并且在我的.Renviron文件中输入的内容与RETICULATE_PYTHON=/Users/dhirajkhanna/opt/anaconda3/bin/python相同。奇怪的是，当我在RStudio控制台中执行Sys.which('python')时，它显示了一条不同的路径，即。 /usr/bin/python。当我加载reticulate程序包时，py_config()的输出为：

python:         /usr/local/bin/python3
libpython:      /usr/local/opt/python/Frameworks/Python.framework/Versions/3.7/lib/python3.7/config-3.7m-darwin/libpython3.7.dylib
pythonhome:     /usr/local/Cellar/python/3.7.4/Frameworks/Python.framework/Versions/3.7:/usr/local/Cellar/python/3.7.4/Frameworks/Python.framework/Versions/3.7
version:        3.7.4 (default, Jul  9 2019, 18:13:23)  [Clang 10.0.1 (clang-1001.0.46.4)]
numpy:          /usr/local/lib/python3.7/site-packages/numpy
numpy_version:  1.16.4

python versions found: 
 /usr/bin/python3
 /usr/local/bin/python3
 /usr/bin/python
 /usr/local/bin/python
 /Users/dhirajkhanna/anaconda3/bin/python
 /Users/dhirajkhanna/.virtualenvs/object_recognition_detection/bin/python
 /Users/dhirajkhanna/.virtualenvs/object_recognition_detection1/bin/python
 /Users/dhirajkhanna/.virtualenvs/r-tensorflow/bin/python
 /Users/dhirajkhanna/venv/bin/python

如果指定use_python('/Users/dhirajkhanna/opt/anaconda3/bin/python')，则py_config()的输出为：

python:         /Users/dhirajkhanna/opt/anaconda3/bin/python
libpython:      /Users/dhirajkhanna/opt/anaconda3/lib/libpython3.7m.dylib
pythonhome:     /Users/dhirajkhanna/opt/anaconda3:/Users/dhirajkhanna/opt/anaconda3
version:        3.7.5 (default, Oct 25 2019, 10:52:18)  [Clang 4.0.1 (tags/RELEASE_401/final)]
numpy:          /Users/dhirajkhanna/opt/anaconda3/lib/python3.7/site-packages/numpy
numpy_version:  1.17.3

python versions found: 
 /Users/dhirajkhanna/opt/anaconda3/bin/python
 /usr/bin/python3
 /usr/local/bin/python3
 /usr/bin/python
 /usr/local/bin/python
 /Users/dhirajkhanna/anaconda3/bin/python
 /Users/dhirajkhanna/.virtualenvs/object_recognition_detection/bin/python
 /Users/dhirajkhanna/.virtualenvs/object_recognition_detection1/bin/python
 /Users/dhirajkhanna/.virtualenvs/r-tensorflow/bin/python
 /Users/dhirajkhanna/venv/bin/python

现在，当我尝试在Python代码块中加载Python包时，RStudio崩溃：

import pandas as pd
import matplotlib.pyplot as plt

我收到“ R Session Aborted”消息。在我升级R之前，所有这些都工作正常。您知道如何纠正此问题吗？

编辑

在R中尝试此操作时，出现了细分错误：

> library(reticulate)
> repl_python()
Python 3.7.6 (/Users/dhirajkhanna/opt/anaconda3/bin/python)
Reticulate 1.14 REPL -- A Python interpreter in R.
>>> import pandas as pd

 *** caught segfault ***
address 0x0, cause 'memory not mapped'

Traceback:
 1: py_eval_impl(code, convert)
 2: py_eval("_", convert = FALSE)
 3: doTryCatch(return(expr), name, parentenv, handler)
 4: tryCatchOne(expr, names, parentenv, handlers[[1L]])
 5: tryCatchList(expr, classes, parentenv, handlers)
 6: tryCatch(py_eval("_", convert = FALSE), error = function(e) r_to_py(NULL))
 7: py_last_value()
 8: py_compile_eval(code)
 9: doTryCatch(return(expr), name, parentenv, handler)
10: tryCatchOne(expr, names, parentenv, handlers[[1L]])
11: tryCatchList(expr, classes, parentenv, handlers)
12: tryCatch(py_compile_eval(code), error = handle_error)
13: repl()
14: repl_python()

Possible actions:
1: abort (with core dump, if enabled)
2: normal R exit
3: exit R without saving workspace
4: exit R saving workspace
Selection: 

我也尝试过在virtualenv中运行不同版本的Python（3.6），但仍然没有乐趣。

Answer 1

Rcpp和reticulate的全新安装解决了该问题。更多详细信息here。