From 9f05e4b6b787d146d2155e791b2a8e17d9313d01 Mon Sep 17 00:00:00 2001
From: BO ZHANG <bozhang@nao.cas.cn>
Date: Sun, 9 Oct 2022 18:39:24 +0800
Subject: [PATCH] see if python 3.9 fixes the copybutton

---
 readthedocs.yml | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/readthedocs.yml b/readthedocs.yml
index 5b0ffa7..3d75d4c 100644
--- a/readthedocs.yml
+++ b/readthedocs.yml
@@ -6,7 +6,7 @@
 version: 2
 
 build:
-  os: ubuntu-20.04
+  os: ubuntu-22.04
   tools:
     python: "3.9"
     nodejs: "16"
@@ -18,7 +18,9 @@ sphinx:
   fail_on_warning: true
 
 # Optionally build your docs in additional formats such as PDF
-formats: all
+formats:
+  - pdf
+  - htmlzip
 
 # Optionally set the version of Python and requirements required to build your docs
 python:
-- 
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