Using `pipenv` to create a virtual environment in a folder. 
However, the environment seems to be in the path: 

> 
> /Users/....../.local/share/virtualenvs/......
> 
> 
> 

And when I run the command `pipenv run python train.py`, I get the error:

> 
> can't open file 'train.py': [Errno 2] No such file or directory
> 
> 
> 

How to run a file in the folder where I created the virtual environment?