Readme demo no longer works? Unable to add relationship because child variable is also its index

[actuarial-lonewolf]

Hi,

I'm trying to run the demo and it stops at add_relationship.

library(magrittr)
set_1 <- data.frame(key = 1:100, value = sample(letters, 100, TRUE), stringsAsFactors = TRUE)
set_2 <- data.frame(key = 1:100, value = sample(LETTERS, 100, TRUE), stringsAsFactors = TRUE)

as_entityset(set_1, index = "key", entity_id = "set_1", id = "demo") %>%
  add_entity(entity_id = "set_2", df = set_2, index = "key") %>%
  add_relationship(
    parent_set = "set_1",
    child_set = "set_2",
    parent_idx = "key",
    child_idx = "key"
  )

Error:

 Error in py_call_impl(callable, dots$args, dots$keywords) : 
  ValueError: Unable to add relationship because child variable 'key' in 'set_2' is also its index

I think it might be related to this new error message from this Jun 2020 issue, on featuretools.

I've played around the code but have a hard time understanding how to fix this.
Is there a quick fix?

Thanks for you help!

Diagnotic info:

SessionInfo()
R version 4.0.2 (2020-06-22)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 18363) 
reticulate_1.19      featuretoolsR_0.4.4  magrittr_2.0.1

reticulate::py_discover_config() 
python:         C:/Anaconda3/envs/r-reticulate/python.exe
libpython:      C:/Anaconda3/envs/r-reticulate/python36.dll
pythonhome:     C:/Anaconda3/envs/r-reticulate
version:        3.6.13 (default, Feb 19 2021, 05:17:09) [MSC v.1916 64 bit (AMD64)]
Architecture:   64bit
numpy:          C:/Anaconda3/envs/r-reticulate/Lib/site-packages/numpy
numpy_version:  1.19.5

python versions found: 
 C:/Anaconda3/envs/r-reticulate/python.exe
 C:/Anaconda3/python.exe

[praktiskt]

Hi there and I'm sorry you're having trouble using the library. I am no longer working much with R, so I'm unlikely to pursue this issue in the immediate future. I do know others have had issues running the library under Anaconda.

If you manage to find a solution, do share it here!