Fix a test in python-test.el

Fix a test that breaks the test suite when it is run within a
virtual environment.
See following link for details:
https://lists.gnu.org/archive/html/emacs-devel/2017-03/msg00857.html
* test/lisp/progmodes/python-tests.el
(python-shell-calculate-process-environment-7): Bind
python-shell-virtualenv-root to VIRTUAL_ENV when this var is set; otherwise
bind it to '/env'.

1 files changed, 1 insertions, 1 deletions

diff --git a/test/lisp/progmodes/python-tests.el b/test/lisp/progmodes/python-tests.el
index 2f4c2fb849d..3b75e81afee 100644
--- a/test/lisp/progmodes/python-tests.el
+++ b/test/lisp/progmodes/python-tests.el
@@ -2612,7 +2612,7 @@ Using `python-shell-interpreter' and
   "Test no side-effects on `process-environment'."
   (let* ((python-shell-process-environment
           '("TESTVAR1=value1" "TESTVAR2=value2"))
-         (python-shell-virtualenv-root "/env")
+         (python-shell-virtualenv-root (or (getenv "VIRTUAL_ENV") "/env"))
          (python-shell-unbuffered t)
          (python-shell-extra-pythonpaths'("/path1" "/path2"))
          (original-process-environment (copy-sequence process-environment)))