Sc 187/cleanup and docstrings

Created doc strings where missing.

umbra/alignment_strategy.py

@@ -5,39 +5,15 @@ class AlignmentStrategy(ABC):
 
     @abstractmethod
     def __str__(self):
-        """Provides a string representation of the AlignmentStrategy."""
+        """Provide a String representation of the AlignmentStrategy."""
         pass
 
     @abstractmethod
     def align(self, source, shadow):
-        """Align the source and shadow Sentences.
+        """Align a pair of source and shadow Sentences.
 
         Args:
-            source: The Sentence of words in the source file
-            shadow: The Sentence of words in the shadow file
+            source: The Sentence of SourceWords
+            shadow: The Sentence of ShadowWords
         """
         pass
-
-    @staticmethod
-    def correctly_shadowed(source_words):
-        """Give a summary of the results.
-
-        Args:
-            source_words: The Sentence of Words in the source file
-
-        Returns:
-            total_words: Total number of Words to be shadowed
-            correct: Number of correctly shadowed Words
-            skipped: Number of Words skipped
-        """
-        total_words = 0
-        correct = 0
-        skipped = 0
-        for source_word in source_words:
-            total_words += 1
-            if source_word.shadowed:
-                correct += 1
-            else:
-                skipped += 1
-
-        return total_words, correct, skipped