R-py type passing

Note- quarto renders fail

This runs fine interactively, but when I render, everything fails. The python chunks lose what was in the previous ones, and the references to py$ in R chunks all fail. For now I’m going to just skip errors and have this not render correctly, which is unsatisfying. Not much more I can do though until I sort out the NameError issue, which is tricky because it doesn’t replicate consistently.

Passing types

I have a python function that takes dicts and lists as arguments. How do I pass those from R? We can’t just assign them to a variable in R, because those formats don’t work- e.g. we cannot create the lists and dicts in R to pass.

```{r}
#| eval: false
outputType = ['summary', 'all']

allowance ={'minThreshold': MINT, 'maxThreshold': MAXT, 'duration': DUR, 'drawdown': DRAW}
```

So, let’s write a function to tell me the type of what I’m passing and try a few things.

```{python}
def test_type(testarg):
  
  return(type(testarg))
```

Is a named list a dict or a list? what about just a c()? Is that a list?

```{r}
rlist <- list(dict1 = 100, dict2 = 'testing')
rc <- c(100, 50)
```

The named list is a dict. Look at it in python and R.

```{python}
test_type(r.rlist)
```

<class 'dict'>

```{r}
py$test_type(rlist)
```

Error in eval(expr, envir, enclos): object 'py' not found

The c() is a list- but see below- this fails if it’s length-one

```{r}
py$test_type(rc)
```

Error in eval(expr, envir, enclos): object 'py' not found

An unnamed list is a list

```{r}
rlistu = list(100, 'testunname')
py$test_type(rlistu)
```

Error in eval(expr, envir, enclos): object 'py' not found

That is useful, since creating a length-one list doesn’t work with single values or c() wrapping single values

```{r}
rone = 100
py$test_type(rone)
```

Error in eval(expr, envir, enclos): object 'py' not found

```{r}
ronec = c('testingc')
py$test_type(ronec)
```

Error in eval(expr, envir, enclos): object 'py' not found

We do get a length-one list with an unnamed list of length 1.

```{r}
ronel = list(100)
py$test_type(ronel)
```

Error in eval(expr, envir, enclos): object 'py' not found