add python requirement ruamel.yaml.clib==0.2.2 to keep python 2.7 compatible (#7754)

3 years ago · b46a69f5e1
1 changed files with 1 additions and 0 deletions
--- a/requirements.txt
+++ b/requirements.txt
@ -5,4 +5,5 @@ netaddr==0.7.19
 pbr==5.4.4
 jmespath==0.9.5
 ruamel.yaml==0.16.10
+ruamel.yaml.clib==0.2.2
 MarkupSafe==1.1.1