# HG changeset patch
# User Franz Glasner <fzglas.hg@dom66.de>
# Date 1590041943 -7200
# Node ID bfa4d125fd144b64e96a95ab359f7ed8277a1afc
# Parent  f3c3bfc2bcbe2d098f7ce8f0c9e01f2cd151ce98
FIX: The namespace lookup implementation for the "OS" namespace did not properly handle the "default" argument.

It has been ignored entirely.

diff -r f3c3bfc2bcbe -r bfa4d125fd14 CHANGES.txt
--- a/CHANGES.txt	Wed May 13 09:45:13 2020 +0200
+++ b/CHANGES.txt	Thu May 21 08:19:03 2020 +0200
@@ -13,6 +13,17 @@
 --------------
 
 .. changelog::
+   :version: n/a
+   :released: n/a
+
+   .. change::
+      :tags: bugfix
+
+      The ``OS`` namespace lookup did not handle non-existing variables
+      properly and ignored the `default` parameter.
+
+
+.. changelog::
    :version: 0.7.3
    :released: 2020-05-13
 
diff -r f3c3bfc2bcbe -r bfa4d125fd14 configmix/variables.py
--- a/configmix/variables.py	Wed May 13 09:45:13 2020 +0200
+++ b/configmix/variables.py	Thu May 21 08:19:03 2020 +0200
@@ -36,7 +36,11 @@
     """Lookup some process and/or OS state """
     if name == "cwd":
         return native_os_str_to_text(os.getcwd())
-    raise KeyError("key %r not found in the namespace" % name)
+    else:
+        if default is _MARKER:
+            raise KeyError("key %r not found in the namespace" % name)
+        else:
+            return default
 
 
 def _pylookup(name, default=_MARKER):