Merge pull request 'Python 3.10: collections.X -> collections.abc.X' (#323) from py3.10 into master

Reviewed-on: #323

cdist/integration.py

@@ -84,7 +84,7 @@ def _process_hosts_simple(action, host, manifest, verbose,
     """
     if isinstance(host, str):
         hosts = [host, ]
-    elif isinstance(host, collections.Iterable):
+    elif isinstance(host, collections.abc.Iterable):
         hosts = host
     else:
         raise cdist.Error('Invalid host argument: {}'.format(host))

cdist/util/fsproperty.py

@@ -33,7 +33,7 @@ class AbsolutePathRequiredError(cdist.Error):
         return 'Absolute path required, got: {}'.format(self.path)
 
 
-class FileList(collections.MutableSequence):
+class FileList(collections.abc.MutableSequence):
     """A list that stores it's state in a file.
 
     """
@@ -102,7 +102,7 @@ class FileList(collections.MutableSequence):
         self.__write(lines)
 
 
-class DirectoryDict(collections.MutableMapping):
+class DirectoryDict(collections.abc.MutableMapping):
     """A dict that stores it's items as files in a directory.
 
     """