Added function to flatten nested dep list

1 files changed, 17 insertions, 0 deletions

diff --git a/util/__init__.py b/util/__init__.py
index c0d7b5a..e57d4f4 100644
--- a/util/__init__.py
+++ b/util/__init__.py
@@ -19,3 +19,20 @@ class WritableObject:
         for part in self.content:
             ret = ret + part
         return ret
+
+def flatten_deps(deps):
+    """
+    Takes nested deps returned from portage.dep.use_reduce and flattens them to simple list
+
+    @param deps: list of dependencies returned from portage.dep.use_reduce()
+    @type deps: List
+    @rtype: List
+    @return: Flattened list of deps
+    """
+    result = []
+    for el in deps:
+        if hasattr(el, "__iter__") and not isinstance(el, basestring):
+            result.extend(flatten_deps(el))
+        else:
+            result.append(el)
+    return result