运行以下代码后，我刚遇到错误：
> library(reticulate)
> Sys.which("python")
python
"/data/users/USER/env/bin/python"
>
> setwd("/data/users/USER/")
>
> reticulate::py_discover_config()
python: /data/users/USER/env/bin/python3.6
libpython: /usr/lib64/libpython3.6m.so.1.0
pythonhome: /usr:/usr
version: 3.6.8 (default, Apr 25 2019, 21:02:35) [GCC 4.8.5 20150623 (Red Hat 4.8.5-36)]
numpy: /data/users/USER/env/lib64/python3.6/site-packages/numpy
numpy_version: 1.16.4
NOTE: Python version was forced by use_python function
> use_python("/data/users/USER/env/bin/python3.6", required = TRUE)
> use_virtualenv("env")
>
> data_py <- r_to_py(data)
>
> repl_python()
Python 3.6.8 (/data/users/USER/env/bin/python3.6)
Reticulate 1.12.0.9005 REPL -- A Python interpreter in R.
>>> quit
> import pandas
Error: unexpected symbol in "import pandas"
这很奇怪，因为该代码以前可以工作，我可以从RStudio调用Python命令。基本上没有Python命令可以被识别...
另一个例子：
> repl_python()
Python 3.6.8 (/data/users/USER/env/bin/python3.6)
Reticulate 1.12.0.9005 REPL -- A Python interpreter in R.
>>> quit
> r.data_py['text'] = r.data_py['text'].str.replace("[^a-zA-Z]", " ")
Error: unexpected symbol in "r.data_py['text'] = r.data_py['text'].str.replace"
会话信息：
R version 3.5.2 (2018-12-20)
Platform: x86_64-redhat-linux-gnu (64-bit)
Running under: Red Hat Enterprise Linux
Matrix products: default
BLAS/LAPACK: /usr/lib64/R/lib/libRblas.so
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 LC_PAPER=en_US.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] tidyr_0.8.3 dplyr_0.8.3 reticulate_1.12.0-9005
loaded via a namespace (and not attached):
[1] Rcpp_1.0.1 pillar_1.4.2 compiler_3.5.2 remotes_2.1.0 prettyunits_1.0.2 tools_3.5.2
[7] digest_0.6.19 pkgbuild_1.0.3 pkgload_1.0.2 jsonlite_1.6 memoise_1.1.0 tibble_2.1.3
[13] gtable_0.3.0 lattice_0.20-38 pkgconfig_2.0.2 png_0.1-7 rlang_0.4.0 Matrix_1.2-15
[19] cli_1.1.0 rstudioapi_0.10 curl_3.3 withr_2.1.2 fs_1.3.1 desc_1.2.0
[25] devtools_2.0.2 rprojroot_1.3-2 grid_3.5.2 tidyselect_0.2.5 glue_1.3.1 R6_2.4.0
[31] processx_3.4.0 sessioninfo_1.1.1 ggplot2_3.2.0 purrr_0.3.2 callr_3.3.0 magrittr_1.5
[37] usethis_1.5.1 backports_1.1.4 scales_1.0.0 ps_1.3.0 assertthat_0.2.1 colorspace_1.4-1
[43] lazyeval_0.2.2 munsell_0.5.0 crayon_1.3.4
编辑：
更新。 R Studio服务器最近从RStudio 1.1.xxx更新为rstudio-server-1.2.1335-1.x86_64。
当我在RStudio“编辑器”中执行命令时，我得到了错误，但是当我在控制台中执行命令时，我没有得到任何错误...所以这似乎是一个问题。