add typing-extensions requirement

dtrodrigues · dtrodrigues · commit 47c75308298b · 2021-11-07T23:42:17.000-05:00
diff --git a/setup.cfg b/setup.cfg
@@ -27,6 +27,7 @@ install_requires =
     pygments
     pyxdg
     requests
+    typing-extensions
 
 [options.extras_require]
 clipboard = pyperclip
