Update read-n-characters-given-read4.py

kamyu104 · web-flow · commit 36d933df7969 · 2018-08-04T13:59:35.000+08:00
diff --git a/Python/read-n-characters-given-read4.py b/Python/read-n-characters-given-read4.py
@@ -37,14 +37,12 @@ def read(self, buf, n):
         """
         read_bytes = 0
         buffer = [''] * 4
-        globalN = n
         for i in xrange(n / 4 + 1):
             size = read4(buffer)
             if size:
-                toRead = min(globalN,size)
-                buf[read_bytes:read_bytes+toRead] = buffer[:toRead]
-                read_bytes += toRead
-                globalN -= toRead
+                to_read = min(n-read_bytes, size)
+                buf[read_bytes:read_bytes+to_read] = buffer[:to_read]
+                read_bytes += to_read
             else:
                 break
         return read_bytes
