`use_condaenv()` doesn't activate the specified conda env

[ataeub]

When using use_condaenv() and then py_run_file() I expected use_condaenv() to activate the specified conda environment and run the python file within it. However it didn't do that. I found out, because in my conda env I have a custom activate script that adds some pythonpath variables. This worked when running the file via conda_run2() but not with use_condaenv() and py_run_file().

I don't know whether this is expected behaviour that's why I didn't post this as an issue, but it seems kind of counterintuitive to have a separate use_condaenv() function in addition to the use_python() function when the former doesn't activate the environment. Or am I missing another purpose of this?