Bump versions of cpython.

Author: JulienPalard

build_docs.py

@@ -55,9 +55,9 @@
     # version, git branch, isdev
     (3.6, "3.6", False),
     (3.7, "3.7", False),
-    (3.8, "3.8", True),
-    (3.9, "master", True),
-    (2.7, "2.7", False),
+    (3.8, "3.8", False),
+    (3.9, "3.9", True),
+    (3.10, "master", True),
 ]
 
 LANGUAGES = ["en", "fr", "ja", "ko", "pt-br", "zh-cn", "zh-tw", "id"]