sqlite-utils json dogs.db "select * from dogs"

sqlite_utils/utils.py

@@ -0,0 +1,28 @@
+def iter_pairs(iterator):
+    # Yields (item, next_item, is_last) pairs
+    # Last row is (item, None, True)
+    first = True
+    next_item = None
+    while True:
+        next_done = False
+        if first:
+            item, done = next_with_done(iterator)
+            if done:
+                break
+            next_item, next_done = next_with_done(iterator)
+            first = False
+        else:
+            item = next_item
+            next_item, next_done = next_with_done(iterator)
+
+        yield item, next_item, next_done
+
+        if next_done:
+            break
+
+
+def next_with_done(iterator):
+    try:
+        return next(iterator), False
+    except StopIteration:
+        return None, True