add windows-install-dependencies.py

windows-install-dependencies.py

@@ -0,0 +1,13 @@
+# This is meant to be double-clicked from File Explorer.
+
+# This doesn't import pip as a module in case the way it's executed changes, which it has in the past.
+# Instead we call it like we would in the command line.
+
+from subprocess import run
+from os.path import dirname, join
+from sys import executable
+
+root_dir = dirname(__file__)
+
+run([executable, '-m', 'pip', 'install', '--user', '-r', join(root_dir, 'requirements-win32.txt')])
+input('Press enter to close')