Index: abinit.py
===================================================================
--- abinit.py	(revisión: 3638)
+++ abinit.py	(copia de trabajo)
@@ -23,17 +23,12 @@
     if type(filename) == str:
         f.close()
 
-    full_file = ''
+    lines = []
     for line in lines:
-        if '#' in line:
-            meat, comment = line.split('#')
-        else:
-            meat = line
-        full_file = full_file + meat + ' '
-
-    full_file.strip()
-    tokens = full_file.lower().split()
-
+        meat = line.split('#', 1)[0].lower()
+        lines.append(line)
+    tokens = ' '.join(lines).strip()
+    
     # note that the file can not be scanned sequentially
 
     index = tokens.index("acell")