import select
import os
-import StringIO
+import sys
+from io import StringIO
def rw_pipe(buf_, infd, outfd):
- buf = StringIO.StringIO()
+ buf = StringIO()
buf.write(buf_.read())
- ret = StringIO.StringIO()
+ ret = StringIO()
pos = 0
rd_fin = 0
wr_fin = 0