[Calypso] [PATCH] Only import lockfile.pidlockfile when needed

[Guido]

Debian Jessie python-lockfile 0.8 lacks it and a pidlockfile is not
always needed.
---
 calypso.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/calypso.py b/calypso.py
index c3c1999..7d8c31b 100755
--- a/calypso.py
+++ b/calypso.py
@@ -38,7 +38,6 @@ arguments.
 
 import daemon
 import lockfile
-from lockfile import pidlockfile
 import logging
 import optparse
 import os
@@ -149,6 +148,7 @@ if not options.daemon:
 context = daemon.DaemonContext()
 context.umask = 0o002
 if options.pidfile:
+    from lockfile import pidlockfile
     # Generate a pidfile where requested
     context.pidfile = pidlockfile.PIDLockFile(options.pidfile)
 with context:
-- 
2.7.0.rc3