add class FileResponse; universal response for a single file

zipfly/response.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+
+class FileResponse:
+
+    """read a file piece by piece.
+    Default chunk size 0x4000 bytes"""
+
+    def __init__(self,
+                 file_location = '/',
+                 chunksize = int(0x4000)):
+
+        self.file_location = file_location
+        self.chunksize = chunksize
+
+
+    def __iter__(self):
+
+        with open(self.file_location, 'rb') as entry:
+
+            for chunk in iter(lambda: entry.read(self.chunksize), b''):
+
+                yield chunk