Be less picky about empty filters

Closes: #635641

diff --git a/gbp/deb.py b/gbp/deb.py
index f88ff68..547fbb7 100644 (file)
--- a/gbp/deb.py
+++ b/gbp/deb.py
@@ -223,6 +223,9 @@ class UpstreamSource(object):
         if self.is_dir:
             raise GbpError, "Cannot unpack directory %s" % self.path
 
+        if not filters:
+            filters = []
+
         if type(filters) != type([]):
             raise GbpError, "Filters must be a list"
 
@@ -281,6 +284,9 @@ class UpstreamSource(object):
         if not self.unpacked:
             raise GbpError, "Need an unpacked source tree to pack"
 
+        if not filters:
+            filters = []
+
         if type(filters) != type([]):
             raise GbpError, "Filters must be a list"