From 0c71dd8a05655788f2c68c9f8076b1ae7856f4de Mon Sep 17 00:00:00 2001
From: BO ZHANG <bozhang@nao.cas.cn>
Date: Sun, 9 Oct 2022 18:34:25 +0800
Subject: [PATCH] see if python 3.9 fixes the copybutton

---
 readthedocs.yml | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/readthedocs.yml b/readthedocs.yml
index 368b2c2..03acd36 100644
--- a/readthedocs.yml
+++ b/readthedocs.yml
@@ -5,6 +5,12 @@
 # Required
 version: 2
 
+build:
+  os: ubuntu-20.04
+  tools:
+    python: "3.9"
+    nodejs: 16
+
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
   builder: html
@@ -12,12 +18,10 @@ sphinx:
   fail_on_warning: true
 
 # Optionally build your docs in additional formats such as PDF
-formats:
-  - pdf
+formats: all
 
 # Optionally set the version of Python and requirements required to build your docs
 python:
-  version: 3.8
   install:
     - requirements: doc/requirements.txt
     - method: pip
@@ -32,4 +36,4 @@ search:
     api/v1/*: -1
     api/v2/*: 4
   ignore:
-    - 404.html
\ No newline at end of file
+    - 404.html
-- 
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