diff -up qtwebengine-everywhere-src-5.15.5/src/3rdparty/chromium/third_party/catapult/common/py_vulcanize/py_vulcanize/generate.py.use-python2 qtwebengine-everywhere-src-5.15.5/src/3rdparty/chromium/third_party/catapult/common/py_vulcanize/py_vulcanize/generate.py
--- qtwebengine-everywhere-src-5.15.5/src/3rdparty/chromium/third_party/catapult/common/py_vulcanize/py_vulcanize/generate.py.use-python2	2021-05-28 07:05:45.000000000 -0500
+++ qtwebengine-everywhere-src-5.15.5/src/3rdparty/chromium/third_party/catapult/common/py_vulcanize/py_vulcanize/generate.py	2021-06-23 15:27:45.771765298 -0500
@@ -83,7 +83,7 @@ def _MinifyJS(input_js):
 
   with tempfile.NamedTemporaryFile() as _:
     args = [
-        'python',
+        'python2',
         rjsmin_path
     ]
     p = subprocess.Popen(args,
diff -up qtwebengine-everywhere-src-5.15.5/src/webengine/module.pro.use-python2 qtwebengine-everywhere-src-5.15.5/src/webengine/module.pro
--- qtwebengine-everywhere-src-5.15.5/src/webengine/module.pro.use-python2	2021-06-11 00:31:04.000000000 -0500
+++ qtwebengine-everywhere-src-5.15.5/src/webengine/module.pro	2021-06-23 15:26:48.897435095 -0500
@@ -76,7 +76,7 @@ qtConfig(webengine-testsupport) {
     python = $$pythonPathForShell()
     chromium_attributions.commands = \
         cd $$shell_quote($$shell_path($$PWD/../3rdparty)) && \
-        $$python chromium/tools/licenses.py \
+        python2 chromium/tools/licenses.py \
         --file-template ../../tools/about_credits.tmpl \
         --entry-template ../../tools/about_credits_entry.tmpl credits \
         $$shell_quote($$shell_path($$OUT_PWD/chromium_attributions.qdoc))