Imagecatalog: Implement get_image method

Author: bastelfreak

marmoset/imagecatalog/__init__.py

@@ -2,7 +2,6 @@
 
 from .catalog import ImageCatalog
 
-
 def list_all(args):
     """List all images."""
     # pylint: disable-msg=unused-argument
@@ -11,6 +10,11 @@ def list_all(args):
     for image_metadata in metadata_list:
         print_metadata(image_metadata)
 
+def get_image(args):
+    """Get Metadata for a single image"""
+    catalog = ImageCatalog
+    metadata = catalog.get_image_path(args.filename)
+    print_metadata(metadata)
 
 def print_metadata(metadata_dict):
     """Print the image's metadata dict."""