Create ~/.virtualenv dir if it doesn't already exist.

settings.org

@@ -466,6 +466,9 @@ put executables in elpy-rpc-venv in path
   (defun rlbr/init-python-venv-in-library-root (&optional library-root)
     "Prompt to either create one or use default" (let ((venv-name (rlbr/get-venv-name))
 						       (library-root (if library-root library-root (elpy-library-root))))
+						   (let ((workon-home (pyvenv-workon-home)))
+						     (unless (file-exists-p workon-home)
+						       (make-directory workon-home t)))
 						   (setq venv-name (rlbr/handle-name-conflicts venv-name))
 						   (if (y-or-n-p (format "Create venv '%s'?" venv-name))
 						       (pyvenv-create venv-name (rlbr/get-python-executable))