translating named list vectors from R into rpy2 in Python?

Question

What is the equivalent of the following R code in Rpy2 in python? ``` Var1 = c("navy", "darkgreen") names(Var1) = c("Class1", "Class2") ann_colors = list(Var1 = Var1) ``` It's not clear what `ann_colors` is. When evaluated in R it gives: ``` > ann_colors $Var1 Class1 Class2 "navy" "darkgreen" ``` Is it an `robject.ListVector`? I tried: ``` robjects.ListVector({"Class1": "navy", "Class2": "green"}) ``` but it's not quite it because I'm not sure how to tell the ListVector object that the name of this object is `Var1`, i.e. something like `list(Var1 = Var1)`. How can this be properly translated to rpy2?

Accepted Answer

After many hours of trial and error, I found the solution. I don't fully understand why the similar variants of this did not work, or why this scheme is not interchangeable with dataframes, but what I got to work is:

```
anno_colors = robj.StrVector(tuple(["navy", "green"]))
anno_colors.names = ["Class1", "Class2"]
od = OrderedDict()
od["Type"] = anno_colors
result = robj.ListVector(od)
print str(result)
```

translating named list vectors from R into rpy2 in Python?

Solution

Problem