diff --git a/.gitignore b/.gitignore
index d2c682b1e5..63d311f033 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,6 +39,7 @@ Temporary Items
 /dist/
 
 /vendor/bin/*
+/vendor/python/*
 /.venv
 /venv/
 
diff --git a/openpype/lib/import_utils.py b/openpype/lib/import_utils.py
index 9f459bbb51..4e72618803 100644
--- a/openpype/lib/import_utils.py
+++ b/openpype/lib/import_utils.py
@@ -2,7 +2,6 @@ import os
 import sys
 import importlib
 from .log import PypeLogger as Logger
-from pathlib import Path
 
 log = Logger().get_logger(__name__)
 
@@ -24,17 +23,3 @@ def discover_host_vendor_module(module_name):
 
     sys.path.insert(1, module_path)
     return importlib.import_module(module_name)
-
-
-def get_pyside2_location():
-    """Get location of PySide2 and its dependencies.
-
-    Returned path can be used with `site.addsitedir()`
-
-    Returns:
-        str: path to PySide2
-
-    """
-    path = Path(os.getenv("OPENPYPE_ROOT"))
-    path = path / "vendor/python/PySide2"
-    return str(path)
diff --git a/start.py b/start.py
index 8e7c195e95..905526480f 100644
--- a/start.py
+++ b/start.py
@@ -124,6 +124,10 @@ else:
     paths.append(frozen_libs)
     os.environ["PYTHONPATH"] = os.pathsep.join(paths)
 
+# Vendored python modules that must not be in PYTHONPATH environment but
+#   are required for OpenPype processes
+vendor_python_path = os.path.join(OPENPYPE_ROOT, "vendor", "python")
+sys.path.insert(0, vendor_python_path)
 
 import blessed  # noqa: E402
 import certifi  # noqa: E402
diff --git a/tools/fetch_thirdparty_libs.ps1 b/tools/fetch_thirdparty_libs.ps1
index 7ece9ee10e..f87ce3e724 100644
--- a/tools/fetch_thirdparty_libs.ps1
+++ b/tools/fetch_thirdparty_libs.ps1
@@ -38,7 +38,7 @@ if (-not (Test-Path -PathType Container -Path "$openpype_root\.poetry\bin")) {
 }
 Write-Host ">>> " -NoNewline -ForegroundColor Green
 Write-Host "Installing PySide2 ... "
-& "$($env:POETRY_HOME)\bin\poetry.bat" run python -m pip install PySide2 -t "$($openpype_root)\vendor\python\PySide2"
+& "$($env:POETRY_HOME)\bin\poetry.bat" run python -m pip install PySide2 -t "$($openpype_root)\vendor\python"
 
 & poetry run python "$($openpype_root)\tools\fetch_thirdparty_libs.py"
 Set-Location -Path $current_dir
diff --git a/tools/fetch_thirdparty_libs.sh b/tools/fetch_thirdparty_libs.sh
index e5c79b81dc..f619bc9f01 100755
--- a/tools/fetch_thirdparty_libs.sh
+++ b/tools/fetch_thirdparty_libs.sh
@@ -100,7 +100,7 @@ main () {
   pushd "$openpype_root" > /dev/null || return > /dev/null
 
   echo -e "${BIGreen}>>>${RST} Installing PySide2 ..."
-  "$POETRY_HOME/bin/poetry" run python -m pip install PySide2 -t "$openpype_root/vendor/python/PySide2"
+  "$POETRY_HOME/bin/poetry" run python -m pip install PySide2 -t "$openpype_root/vendor/python"
 
   echo -e "${BIGreen}>>>${RST} Running Pype tool ..."
   poetry run python "$openpype_root/tools/fetch_thirdparty_libs.py"