From 3acfa3abdc7577f97bb40b9790c10d43c0e486e4 Mon Sep 17 00:00:00 2001
From: Daniel Hahler <git@thequod.de>
Date: Sat, 17 Nov 2018 13:18:54 +0100
Subject: [PATCH] Add Testdir.__str__ to return str(self.tmpdir)

I just expected this with `monkeypatch.setenv("PYTHONPATH", str(testdir))`,
wondering why it was not picked up correctly.
`
---
 src/_pytest/pytester.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/_pytest/pytester.py b/src/_pytest/pytester.py
index 24ddf4e9e..c59628948 100644
--- a/src/_pytest/pytester.py
+++ b/src/_pytest/pytester.py
@@ -518,6 +518,9 @@ class Testdir(object):
     def __repr__(self):
         return "<Testdir %r>" % (self.tmpdir,)
 
+    def __str__(self):
+        return str(self.tmpdir)
+
     def finalize(self):
         """Clean up global state artifacts.