scriptable application/Unix: Remove setting of PYTHONHOME for virtualenv

On Linux, with 3.8, it causes an error in conjunction with virtualenv:
Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding
Python runtime state: core initialized
ModuleNotFoundError: No module named 'encodings'

Task-number: PYSIDE-841
Change-Id: Ibf1caa1a797faab5dd8e4bfa6eb23296bb7945a5
Reviewed-by: Christian Tismer <tismer@stackless.com>
(cherry picked from commit 05db21e661c6ba9eb69516cb1386bcbd431b7d2d)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

1 files changed, 1 insertions, 3 deletions

diff --git a/examples/scriptableapplication/pythonutils.cpp b/examples/scriptableapplication/pythonutils.cpp
index c5e18f256..eef2fada7 100644
--- a/examples/scriptableapplication/pythonutils.cpp
+++ b/examples/scriptableapplication/pythonutils.cpp
@@ -94,14 +94,12 @@ static const char virtualEnvVar[] = "VIRTUAL_ENV";
 // packages location.
 static void initVirtualEnvironment()
 {
-    QByteArray virtualEnvPath = qgetenv(virtualEnvVar);
     // As of Python 3.8, Python is no longer able to run stand-alone in a
     // virtualenv due to missing libraries. Add the path to the modules instead.
     if (QOperatingSystemVersion::currentType() == QOperatingSystemVersion::Windows
         && (PY_MAJOR_VERSION > 3 || (PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION >= 8))) {
+        const QByteArray virtualEnvPath = qgetenv(virtualEnvVar);
         qputenv("PYTHONPATH", virtualEnvPath + "\\Lib\\site-packages");
-    } else {
-        qputenv("PYTHONHOME", virtualEnvPath);
     }
 }