Sentence/chunk generators - fix

cclutils/_base.py

@@ -162,13 +162,14 @@ def get_tagset(tagset):
 
 
 def read_chunks_it(filepath, tagset='nkjp'):
-""" Returns a iterable sentence generator.
+""" Returns a iterable chunk generator.
 
     Args:
         filepath: a path to CCL file
         tagset: the name of the tagset that is used in the document or a tagset object itself.
 
-    Returns:                                                                                                                                                                                                                                         a iterable sentence generator.                                                                                                                                                                                                       
+    Returns:
+        a iterable chunk generator.
     """
     tagset = get_tagset(tagset)
     reader = corpus2.TokenReader_create_path_reader('ccl', tagset, filepath)
@@ -176,10 +177,9 @@ def read_chunks_it(filepath, tagset='nkjp'):
     while True:
         chunk = reader.get_next_chunk()
     
-        if chunk:
-            yield chunk
-        else:
+        if not chunk:
             break
+        yield chunk
 
     del reader
 
@@ -200,11 +200,10 @@ def read_sentences_it(filepath, tagset='nkjp'):
     
     while True:
         sentence = reader.get_next_sentence()
-        
-        if sentence:
-            yield sentence
-        else:
+
+        if not sentence:
             break
+        yield sentence
 
     del reader