I want to use OpenCV on Julia, then I tried to use PyCall.  

I made my Python environment by pyenv, therefore, I tried below commands;

```
julia> ENV["PYTHON"] = "/Users/MYNAME/.pyenv/shims/python"
julia> using Pkg
julia> Pkg.add("PyCall")

```

Then, I tried a below command and this error message was returned.

```
julia> using PyCall
ImportError: No module named site

```

This error message is too short to infer causes.
Anyone knows the causes and how to solve?