cloudinit/helpers.py: _get_path raise KeyError if input is bad.

previously, if you did: paths.get_ipath("bogus")
it would silenetly hand you back just the directory. now it
will fail, which seems much more sane.

1 files changed, 2 insertions, 3 deletions

diff --git a/cloudinit/helpers.py b/cloudinit/helpers.py
index abfb0cbb..d4acbe7e 100644
--- a/cloudinit/helpers.py
+++ b/cloudinit/helpers.py
@@ -392,10 +392,9 @@ class Paths(object):
             return ipath
 
     def _get_path(self, base, name=None):
-        add_on = self.lookups.get(name)
-        if not add_on:
+        if name is None:
             return base
-        return os.path.join(base, add_on)
+        return os.path.join(base, self.lookups[name])
 
     def get_runpath(self, name=None):
         return self._get_path(self.run_dir, name)