remote: common: list public objects explicitly

labgrid.remote.client and labgrid.remote.coordinator import '*' from
labgrid.remote.common. This leads to various modules being imported
implicitly. Polluting the namespace like this could overwrite previous
local imports or variables.

Better specify explicitly what should be imported on '*'.

Signed-off-by: Bastian Krause <bst@pengutronix.de>

Author: Bastian-Krause

labgrid/remote/common.py

@@ -10,6 +10,16 @@
 
 import attr
 
+__all__ = [
+    'TAG_KEY',
+    'TAG_VAL',
+    'ResourceEntry',
+    'ResourceMatch',
+    'Place',
+    'ReservationState',
+    'Reservation',
+    'enable_tcp_nodelay',
+]
 
 TAG_KEY = re.compile(r"[a-z][a-z0-9_]+")
 TAG_VAL = re.compile(r"[a-z0-9_]?")