ci/check: Fix minor Python lints

Author: travier

ci/check.py

@@ -50,23 +50,24 @@ def handle_error(e):
     os.path.join('users', 'jlebon', 'id_rsa.pub'): 'ssh-rsa AAAAB',
     os.path.join('users', 'jlebon', 'id_ed25519.pub'): 'ssh-ed25519 AAAAC',
     os.path.join('users', 'miabbott', 'id_rsa.pub'): 'ssh-rsa AAAAB',
-    # tutorial-containers.adoc, tutorial-setup.adoc, tutorial-updates.adoc, tutorial-user-systemd-unit-on-boot.adoc
+    # tutorial-containers.adoc, tutorial-setup.adoc, tutorial-updates.adoc,
+    # tutorial-user-systemd-unit-on-boot.adoc
     os.path.join('ssh-key.pub'): 'ssh-rsa AAAAB',
 }
 
 ret = 0
 with tempfile.TemporaryDirectory() as tmpdocs:
     for path, contents in tmpfiles.items():
         os.makedirs(os.path.join(tmpdocs, os.path.dirname(path)), exist_ok=True)
-        with open(os.path.join(tmpdocs, path), 'w') as fh:
+        with open(os.path.join(tmpdocs, path), 'w', encoding="utf-8") as fh:
             fh.write(contents)
     for dirpath, dirnames, filenames in os.walk('.', onerror=handle_error):
         dirnames.sort()  # walk in sorted order
         for filename in sorted(filenames):
             filepath = os.path.join(dirpath, filename)
             if not filename.endswith('.adoc'):
                 continue
-            with open(filepath) as fh:
+            with open(filepath, encoding="utf-8") as fh:
                 filedata = fh.read()
             # Iterate over YAML source blocks
             for match in matcher.finditer(filedata):