From c584739b417c52d06c4b14a0e58fba620e01dc00 Mon Sep 17 00:00:00 2001
From: Dan Ryan <dan@danryan.co>
Date: Tue, 24 Jul 2018 20:31:27 -0400
Subject: [PATCH] Handle NoneType paths

Signed-off-by: Dan Ryan <dan@danryan.co>
---
 pipenv/utils.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pipenv/utils.py b/pipenv/utils.py
index be1240ac..286b1866 100644
--- a/pipenv/utils.py
+++ b/pipenv/utils.py
@@ -1367,6 +1367,8 @@ def is_virtual_environment(path):
 def chdir(path):
     """Context manager to change working directories."""
     from ._compat import Path
+    if not path:
+        return
     prev_cwd = Path.cwd().as_posix()
     if isinstance(path, Path):
         path = path.as_posix()