diff --git a/aligner/meta_aligner.py b/aligner/meta_aligner.py
new file mode 100644
index 0000000..b53308c
--- /dev/null
+++ b/aligner/meta_aligner.py
@@ -0,0 +1,32 @@
+# -*- coding: utf-8 -*- 
+
+
+def zip_alignments(al0lang0, al0lang1, al1lang0, al1lang1):
+    if al0lang0 == al1lang0:
+        return al0lang0, al0lang1, al1lang1
+    else:
+        new0 = {}
+        new1 = {}
+        new2 = {}
+        k, k0, k1 = 0, 0, 0
+        while k0 < len(al0lang0) and k1 < len(al1lang0):
+            if al0lang0[k0] == al1lang0[k0]:
+                new0.update({k: al0lang0[k0]})
+                new1.update({k: al0lang1[k0]})
+                new2.update({k: al1lang1[k1]})
+                k0 += 1
+                k1 += 1
+            elif al0lang0[k0] == +al1lang0[k1] + ' ' + al1lang0.get(k1 + 1, ''):
+                new0.update({k: al0lang0[k0]})
+                new1.update({k: al0lang1[k0]})
+                new2.update({k: al1lang1[k1] + ' ' + al1lang0.get(k1 + 1, '')})
+                k0 += 1
+                k1 += 2
+            elif al0lang0[k0] + al0lang0.get(k0 + 1, '') == al1lang0[k1]:
+                new0.update({k: al0lang0[k0] + ' ' + al0lang0.get(k0 + 1, '')})
+                new1.update({k: al0lang1[k0] + ' ' + al0lang1.get(k0 + 1, '')})
+                new2.update({k: al1lang1[k1]})
+                k0 += 2
+                k1 += 1
+            k += 1
+        return new0, new1, new2
diff --git a/meta_aligner.py b/meta_aligner.py
deleted file mode 100644
index 5fdaca3..0000000
--- a/meta_aligner.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# -*- coding: utf-8 -*- 
-
-
-
-def zip_alignments(al0lang0, al0lang1, al1lang0, al1lang1):
-    if al0lang0==al1lang0:
-        return al0lang0, al0lang1, al1lang1
-    else:
-        new0 = {}
-        new1 = {}
-        new2 = {}
-        k, k0, k1 = 0, 0, 0
-        while k0<len(al0lang0) and k1<len(al1lang0):
-            if al0lang0[k0]==al1lang0[k0]:
-                new0.update({k:al0lang0[k0]})
-                new1.update({k:al0lang1[k0]})
-                new2.update({k:al1lang1[k1]})
-                k0+=1
-                k1+=1
-            elif al0lang0[k0]==+al1lang0[k1]+' '+al1lang0.get(k1+1, ''):
-                new0.update({k:al0lang0[k0]})
-                new1.update({k:al0lang1[k0]})
-                new2.update({k:al1lang1[k1]+' '+al1lang0.get(k1+1, '')})
-                k0+=1
-                k1+=2
-            elif al0lang0[k0]+al0lang0.get(k0+1, '')==al1lang0[k1]:
-                new0.update({k:al0lang0[k0]+' '+al0lang0.get(k0+1, '')})
-                new1.update({k:al0lang1[k0]+' '+al0lang1.get(k0+1, '')})
-                new2.update({k:al1lang1[k1]})
-                k0+=2
-                k1+=1
-            k+=1
-        return new0, new1, new2
-
-            
-        
-        
-        
-        
-        
-        
-        
\ No newline at end of file