saving works now

backend/utils/progress_bar.py

@@ -0,0 +1,17 @@
+import sys
+
+
+def progressbar(it, prefix="", size=60, file=sys.stdout):
+    count = len(it)
+
+    def show(j):
+        x = int(size * j / count)
+        file.write("%s[%s%s] %i/%i\r" %
+                   (prefix, "#" * x, "." * (size - x), j, count))
+        file.flush()
+    show(0)
+    for i, item in enumerate(it):
+        yield item
+        show(i + 1)
+    file.write("\n")
+    file.flush()