Return fileno from clients, for use in select.

diff --git a/pdm/cli.py b/pdm/cli.py
index d88ebbd..bb2bbf5 100644 (file)
--- a/pdm/cli.py
+++ b/pdm/cli.py
@@ -47,6 +47,9 @@ class client(object):
     def close(self):
         self.sk.close()
 
+    def fileno(self):
+        return self.sk.fileno()
+
     def readline(self):
         while True:
             p = self.buf.find("\n")