small fixes

conda_smithy/cli.py

@@ -74,7 +74,7 @@ def generate_feedstock_content(target_directory, source_recipe_dir):
             yaml.dump(_cfg_feedstock, fp)
 
 
-class Subcommand(object):
+class Subcommand:
     #: The name of the subcommand
     subcommand = None
     aliases = []

conda_smithy/configure_feedstock.py

@@ -2001,7 +2001,7 @@ def _read_forge_config(forge_dir, forge_yml=None):
     # Validate loaded configuration against a JSON schema.
     validate_lints, validate_hints = validate_json_schema(file_config)
     for err in chain(validate_lints, validate_hints):
-        logger.warn(
+        logger.warning(
             "%s: %s = %s -> %s",
             os.path.relpath(forge_yml, forge_dir),
             err.json_path,

conda_smithy/utils.py

@@ -118,7 +118,7 @@ def render_meta_yaml(text):
 def update_conda_forge_config(forge_yaml):
     """Utility method used to update conda forge configuration files
 
-    Uage:
+    Usage:
     >>> with update_conda_forge_config(somepath) as cfg:
     ...     cfg['foo'] = 'bar'
     """