client.write(): only send `value` param if `value` is actually set.

`client.update()` calls to directories were failing because the client sends and empty `value` param with every `client.write()` call. This only sends a `value` param in `client.write()` if `value` is set, which fixes this.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/etcd/client.py b/src/etcd/client.py
index 4dbd0d6..726963a 100644
--- a/src/etcd/client.py
+++ b/src/etcd/client.py
@@ -240,9 +240,9 @@ class Client(object):
 
         """
         key = self._sanitize_key(key)
-        params = {
-            'value': value
-        }
+        params = {}
+        if value:
+            params['value'] = value
 
         if ttl:
             params['ttl'] = ttl