fix ci yapf command if no python files found

.drone.jsonnet

@@ -21,7 +21,7 @@ local PipelineLinting = {
       },
       commands: [
         'pip install -qq yapf',
-        'yapf -dr ./',
+        '[ ! -z "$(find .  -type f -name *.py)" ] && yapf -rd ./',
       ],
     },
     {

.drone.yml

@@ -16,7 +16,7 @@ steps:
   image: python:3.9
   commands:
   - pip install -qq yapf
-  - yapf -dr ./
+  - "[ ! -z \"$(find .  -type f -name *.py)\" ] && yapf -rd ./"
   environment:
     PY_COLORS: 1
 
@@ -147,6 +147,6 @@ depends_on:
 
 ---
 kind: signature
-hmac: a57deec8454606c10d1bf88110fe3a7096afa4294d741e34fb8fbe15df5578c6
+hmac: b65a40c16f04371f45ae0b7294ec1199d82a9d1d5a0ba0fe5a7b2e6246041e77
 
 ...

molecule/centos7/tests/test_default.py

@@ -2,6 +2,7 @@ import os
 
 import testinfra.utils.ansible_runner
 
+
 testinfra_hosts = testinfra.utils.ansible_runner.AnsibleRunner(
     os.environ["MOLECULE_INVENTORY_FILE"]
 ).get_hosts("all")