[build] Add transitional `setup.py` and `pyinst.py` (#9296)

Authored by: bashonly, Grub4K, pukkandan

Co-authored-by: Simon Sawicki <contact@grub4k.xyz>
Co-authored-by: pukkandan <pukkandan.ytdlp@gmail.com>

pyinst.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python3
+
+# Allow execution from anywhere
+import os
+import sys
+
+sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
+
+import warnings
+
+from bundle.pyinstaller import main
+
+warnings.warn(DeprecationWarning('`pyinst.py` is deprecated and will be removed in a future version. '
+                                 'Use `bundle.pyinstaller` instead'))
+
+if __name__ == '__main__':
+    main()

setup.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+
+# Allow execution from anywhere
+import os
+import sys
+
+sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
+
+import warnings
+
+
+if sys.argv[1:2] == ['py2exe']:
+    warnings.warn(DeprecationWarning('`setup.py py2exe` is deprecated and will be removed in a future version. '
+                                     'Use `bundle.py2exe` instead'))
+
+    import bundle.py2exe
+
+    bundle.py2exe.main()
+
+elif 'build_lazy_extractors' in sys.argv:
+    warnings.warn(DeprecationWarning('`setup.py build_lazy_extractors` is deprecated and will be removed in a future version. '
+                                     'Use `devscripts.make_lazy_extractors` instead'))
+
+    import subprocess
+
+    os.chdir(sys.path[0])
+    print('running build_lazy_extractors')
+    subprocess.run([sys.executable, 'devscripts/make_lazy_extractors.py'])
+
+else:
+
+    print(
+        'ERROR: Building by calling `setup.py` is deprecated. '
+        'Use a build frontend like `build` instead. ',
+        'Refer to  https://build.pypa.io  for more info', file=sys.stderr)
+    sys.exit(1)